SAMPLE TEST 10.10 FOR FIRST PROGRESS TEST - SECOND TERM - 1OTH GRADERS Complete the passage with the correct alternative given. Write the appropriste letter A, B, C or D on the answer sheet. When'man first learned how to make a fire, he began to use fuel forthe first time. The first fuel lre used was probably wood. As time *(21)-, man eventually discovered that substances such as coal and oil _(22)_. Coal -(23)- very widely as a source of energy until the last century. With tlie coming of the industrial revolution, it was soon realized that production _(24)_ if coal was used instead of wood. Nowadays, many of the huge factories and electricity generating stations _(25)-to function if there was no coal. In the last twenty or thirty years, however, the use of coal _(26)_. As a result, there have been changes in tlre coal industry. lt -(27) that more people _(28)_ coal if oil and gas were not so readily available. There is more than enough coal in the world for man's needs for the next two hundred years if our use of coal -(29)_, . Unfortunately, however, about half of the world's coal -(30) * Mining much of it would be very expensive even if it was possible to use new equipment. Question 21. A. passes B. used to pass C. would pass D. passed Question 22' ' A. are burning B. would burn C. have bumt D. were bumt Question 23. A. not used B. did not use C. not using D. was not used Question 24. A. doubles B. had doubled C. will double D. would double Question 25. A. were unable B. would be unable C. will be unable D. are unable Question 26. A. has declined B. will decline C. declines Question 27. A. believed B. is believing C. believing Question 28. A. would use B. used C. use Question 29. A. did not increase B. would not increase C. does not increase D. may not increase Question 30. A. would never use B. many never be used C. would never be used D. may never use There is one mistake in each sentence below. Find it and write the appropriate letter A, B, C or D on the answer sheet: Question 31. Erosion, which (A) washes away valuable topsoil, (B) can prevent by (C) planting trees and (D) grass. Question 32. The first modern type of (A) printing press (B) was invented (C) with a Gerrnan, Johalnes Gutenberg, (D) in 1439. Question 33. It (A) is estimated that (B) much of a teenager's tirne is(C) spending (D) chatting on the Internet. Question 34. (A) For seveml centuries (B) no real changes (C) made in the basic rnethods (D) used for printing. Question 35. (A) Huricanes from the Gulf of Mexico (B) have been caused considerable (D) darnage to coastal cities in Texas. 'Build up nteaninffil sentences with the word/phrase given. Wite your answer in the space (3d-40) given on your answer sheet: Question 36. we/ now/faced/ problems/ environment. Question 37. erosion/ soil/ result/ when / forests/ cut/ carelessly. Question 38. polluted/ air/ be/ chiefly/ city problem. Question 39. plants/ species/ many/ animak/ be/ danger/ extinction. Question 40. laws/ must/ some/ pass/ help/ protect/ environmenl. ._****mH, Department of Social & Foreign Studies - p"g" t ,. l i.l D. would declines D. is believed D. willuse sar 0x rAP HoA LoP to-r,Ax ru (1/2011) Bni l. Vi6t c6c phuong trinh phin frng xiy ra (n6u c6) khi cho clo lAn luqt t6c dqng vdi: a) Na, Mg, Ba, Al, Fe,Zn, Cu' Ag, P. bi g16, dling dictLNabH (O't6 tt i'Ong;, dung dich KOH (6 100"C), dung dich Ca(OH)z lodng (d t" thudng), sfta v6i ' caloH;r, uoi toi cao, dung dlch KBr, dung dich KI, dung dich HzS, HBr, HzSO: SO2/H2O. c) c6c khi: Oz, CHq, C2F{a, H2,NH3. Bii Z. Vi6t c6c phuong trinh phAn fng xiy ra (n6u c6) khi cho axit HCI (ho[c HBr) lan lugt t6c dung v6i c6c chAt sau: a) K, Na, Ca, Mg, Ba, Al, Fe, Ca, Zn,Cu, Ag. b) K2O, Na2O, MgO, BaO, Al2O3, FezO:, FeO, Fe3Oa, CaO,ZnO, CuO, SiOz' c) KzCO:, NazCO:, MgCO:, BaCO:, CaCO3, AgNO3, NaHSO:,Na2SOa' aj Con,NaoH, vtg(og)2, Ba(oH)2, A(oH)3, Fe(oH)2, ca(oH)2' zn(oH)2, cu(oH)2 Bii 3. Ti' mu6i dn, kali clorua, 116 v6i, nu6c vA cac thitit bi cAn thi6t hay vi6t phucrng trinh didu ch6 nu6c Gia-ven, kali clorat, clorua v6i. Nu6c Gia-ven vir elorua v6i d6u c6 tinh s6t trtrng, tAy tring sgi, vii Giei thich. Vi sao clorua vdi ducv. c sil dpng nhiAu hon nu6c Gia-ven? Bii 4. Vi6t c6c phuong trinh ph6n rlmg x6y ra theo c6c stv dd sau: a) HCI -+ Clz -+ FeCl: + NaCl -+ HCI -+ CuClz + AgCl 'Ag b) MnOz+ Clz-+ HCI + FeCl3 -+ AgCl + Cl2-+Btz-+lz c) KCI -+ Cl2-+ KCIO -+ KCIOr + KCIO+ + KCI -+ KNO3 d) Cb + KCIO3 + KCI -+ Cl2-+ Ca(ClO) z-+ CaClz-> Cl2 e) KMnOa -+ Clz -+ KCIO: + KCI -+ Clz -+ HCI -+ FeCl2 -+ Fe(OH)2 -+ Fe(OH! -+ Fe2O3 + FeCl: + AgCl 0 CaCO: + CaCl2-+NaCl + HCI -+ Clz -+ CaOClz -+ CaCO: -+ CaCl2 + NaCl + NaCIO g) KI -+ Iz + HI + HCI -+ KCI+ Cl2 -+ HCIO + O: [iNuoH + Nacl + HCI , clz-+ HCI + cuclz + KCI + clz' i) F2 -+ CaF2 -+ F{['+ SiFa k) Brz -+ PBr: + HBr + Brz -+ HBrOs Bii 5. Hodn thanh c6c so dd phAn ring sau: 1. Fe > Fecl2 \ p"ct, / NaCIO + HCIO -+ Ch ' KCI -+ Clz y' \ rcto, + KCI -+ Agct Bni 6. Vii5t c6c phuong trinh phin img xiy ra (n6u c6) khi tAn fggt cho c6c c{p ch6t sau tdc dpng v6i nhau: a) NaCl + ZnBr2 e) HBr +NaI i) AgNO3 + ZnBrz m) Cb + FeClz Ui rCf + AgNO: fiCuSOo * ru j) Pb(NOr)z + ZnClz n) Cl2 + SOz + H2O ,jNuCt + t, g) KBr + Cl2 k) KI + Cl2 o) COz + NaCIO + H2O d) KF + AgNo3 [i rfet + NaoH l) KBr + 12 p) Cl2 + HzS + Hzo Bei 7. gO tric c6c phuong trinh phin ri'ng. 1. ? + HCI -) ? + Clz +? 2.?+HCl-+?+COz+? 3. Clz + ? + '! + HzSOa + ? 4. ? +? +NaCl+NaClO+? 5. ? + KOH , KCIO3 + ? 6. SiO, + ? + SiF+ + ? 7. ? + ?'CuClz + ? 2. g. ?+2__-+ SiF4+? 9. MgBr2 * ? + Bt2 * ? 10. ? + ?_+KOH + ? + Clz 11.?*SO2 +?+HzSO+ 12. Cl2 + '! "+ FeCl3 13. Cl2 + 'l + Oz * ? 14. KCIO3 ' ? + 2 Bni 8. Hodn thdnh c6c chuY,Sn ho6 sau: 1.KMnO++A +B+MnCl2+Cl2t+C4'D+G-+Fe(OH)'J+B 2. B+C nan>D +Fl +cl2T 5.KCIO3 ">B+E 3. Cl2+Ddemdac '"rB+KCIO3+C 6' F+E ?) C Bni 9. Mu6i an c6 l6n c6c t4p chAt ld NazSo+, Mgcl2, cacl2 vd'caSo+. Hdy trinh bdy phuong phip h6a hqc c6 thti loai b6 c6c tap chAt, thu NaCl tinh khiCt. Vi6t phuong trinh h6a hgc c6c phin f'ng' Bii 10. a) Tri Nacl, H2soa, Fe, cu. vii5t c6c phuong trinh ph6n irng diau ch6: Fecl2, Fec13, FeSO+, Fe2(SOa), CuCl2, CuSO+, NazSOr. Bni 11. viet c6c phuong trinh phin ring chf'ng minh tinh o!lr-o-1 cira c6c halogen gi6m dan tir flo d6n i6t' Ndu nhAn x6t vE tinh khft, tinh axit cria c6c h-o. p chAt HX (X ld halogen). Bii 12. Hdy ndu vd giiithich hi€n tueng xdy ra (niiu cd) trong c6c trudng hgp sau: a) Eua m6u gi6-y mAu tAm uort vao binh dpng khi clo. Dirng binh th6p dgng khi clo kh6 md kh6ng dugc dtng binh th6p dgng kh( clo Am. b) Nu'6'c clo, nudc Gia-ven, clorua v6i c6 tinh tAy mAu. c) Kh6ng dirng chai, l9 bing thuj'tinh- ttpg axit [IF. d) Dua tdn qui d6* hdng vdo migng iing nghigm (trong 6ng nghiQm chria h6n hqp KCIO3 * MnOz dang ddt n6ng). "i DAn khi clo vdo dung dich hdn hqp KI ve hd tintr bQt. 0 Nh6 it gigt dung dich AgNO3 vdo 6ng nghiQm tlpg dung dlch NaCl, gan b6 nu6c lsc. Sau tl6 d[t menh gidy qu} Am t6n miQng ting nghiQm, dua 6ng nghi€m ra ngoii 6nh sing. BAf 13. Cho kali pemanganat t6c dpng v6i axit clohidric dic thu du-o. c mQt chAt khi mdu vigg lUc. DIn khi thu dutv. c vdo dung dich KOH 6 nhiQt-ttQ thuong va-veo dung dich KOH da dugc dun n6ng t6i 100'C. Vii5t cfc phuong trinh phin ring xAy ra. Cho bitit vai trd cta clo trong c6c phf,n ftng oxiho6-khir cl6- Bei 14. a) Hoi tan khi clo vdo nudc ta thu du,o. c nu6c clo c6 miu virng. Khi d6 mQt phAn clo t5c dpng v6i nudc. Vfly nu6'c clo c6 chria nhtng ctr6t giZ b) Cho khi clo t6c dpng vdi vdi t6i hoftc stia vdi thu du-o. c clorua v6i. Clorua vdi trong kh6ng khi dm s0 t6c dsng v6'i cacbon dioxit, giii ph6ng ri axit hipocloro. Vi6t cdc phuong trinh phan img xAy ra. NOu rlmg dpng cta clorua vOi. c) Thdi krhiclodi qua dung dlch natri cacbonat, ngud'i ta ttr:Ay c6 khi X tho6t ra. Thu khi X vdo binh dyng dung dich nu6c v6i trong du th6y dung dich trd ndn vAn dpc. Gi6i thich bing c6c phin img ho6 hqc. d) Cho khi clo ili qua dung dich natri bromu a, th}ry dung dich c6 mdu vang. tii5p tuc cho khi clo di qua, ta thdry dung dich dAn bi rnAt mdu. L6y vai gist dung dich sau thi nghiQm nh6 l6n gi6y quj tim thi gi6y qu! ho6 elo. Hey gi6i thfch hiQn tueng vd vitit c6c phuong trinh ho6 hgc xiy ra. e) Cho kni clo du rp" qrru Jung dich kali iotua, mQt th<ri gian sau d6 ngudi ta dung h6 tinh bQt di5 x6c nhfln sy c6 mf,t cira iot tg do nhung kh6ng thAy miu xanh. Hey gi6i thich hign tuqng tr6n, vi6t phucrng trinh ho6 hec cira phin ung. g; OC diAu ctr6 kati clorat, ngudi ta lim nhu sau: Cho khi clo cli qua nudc v6i dun n6ng, l6y dung dich thu dugc trQn v6i KClvi ldrn l4nh. Khi <16 kali clorat s€ k6t tinh. Hdy vi6t phucrng trinh ho6 hgc cAc phin ring xhy ruvd giii thich vi sao kali clorat k6t tinh. Bni 15. Suc khi luu huj,nh ctioxit du qua dung dich nu6c brom, th6y dung dich nu6c brom (mdu ndu d6) b! mAt miu, dung dlch thu duo. c AC iau trong khdng khf tro n6n c6 miu nAu d6 (ho{c vdng nAu). Hdy giii thich hiQn tugng vd vi6t c6c phuong trinh phin ring. Bni 16. a) Silic dioxit ld mQt chht rittro v€j m[t ho6 hgc nhung n6 c6 phin img v6i tIF vi F2. Hdy vi6t c6c phuong trinh phan *f;; Vi sao kh6ng thc dieu ch6 flo tir florua bang phin ring cria florua vdi ch6t oxi h6a mi chi dirng phucrng ph6p di6n phAn? Bii 17. vi6t c6c phuong trinh ph6n irng trong t16 brom ld chAt oxi h6a; ctr6t ktui; vira li ch6t oxi h6a, vtra li ch6t khu. Bni 18. Nhpn biiSt c6c l9 m6t nhAn dpng c6c dung dlch sau (khdng gi6i h4n thu6c thri): Bni 19. Nhfln biiit c6c lg m6t nhAn dpng c6c dung dich sau (chi dirng I thu6c thir) a) KOH, NaCl, HCI c) NaOH, NaCI, HCl, NaNO3, KI e) NaOH, HCl, MgBr2, NaI, h6 tinh bot a) KI, NaCl, HNO3 c) CaI2, AgNO3, Hg(NO:)2, HCI a) KOH, CuCl2, HCl,ZnBrz c) KOH, KCl, FeCl3, AgNOs b) KOH, NaCl, HCl, NaNO3 d) NaOH, NaCl, CUSO+, AgNO3 f) NaOH, HCl, CuSOa, HI, HNO3 b) KBr, ZnIyHCl, Mg(NOr)z d) KI, NaCl, Mg(NO:)r, HgC.l2 b)NaOH, HCl, Cu(NO:)2, AlClr d) NaCl, HI, AgNO3, NazCO: Bni 20. Nh{n bi€t c6c l9 mAt nhan dgng c6c dung dich sau (kh6ng dirng th6m thudc thri) Bdi 21. HEy nhfn biiSt c6c ho6 ch6t m6t nhen sau: a) Dung d!ch: HCl, KCl, KBT,I(I b) Dung dich: NaCl, NaBr, Na2CO3, 12. c) Chdt rdn: CaCO:, K2CO3, NaCl, KNO3. d) Chdt rin: AgCl, BaCOr, KCl, KI. e) NaCl, NaNO3, BaCl2, Ba(NO3)2. f) Dung dich: NaCl, NaBr vd NaI. Dugc d[ng 2 thu6c thu, nhung kh6ng cluoc dirng AgNO3. 8 i22. Hdy nh4n bi6t c6c ho6 chAt mAt nhan sau bing mQt thu6c thri: a) Dung dich: NaCl, MgCl2, AlCl:, FeCl2, FeClr, CuCl2. b) Dung dich: KF, KCl, KBr, KL c) Dung dich: NH4CI, FeCl:, MgBr2, KI. d) Dung dich: HCl, AgNO3, HBr, KI, HF, KOH. Bii 23. Hodn thinh c6c phuong trinh phAn ri'ng diiru ctr6 t<tri clo sau: l. MnOz +HClclac -+ 2. KMnOa + HCI dac -+ 3. KzCrzOt + HCI d[c -+ 4. KCIO3 + HCI d?c -+ 5. CaOCl2 + HCI dflc -+ 6. KCIO3 + HCI dac -+ 7. NaCIO + HCI tl{c -+ B i24.C6 thC diAu ch6 clo bing c6ch dun n6ng hdn hop KHSOa, KCl, Mn-Oz.Vi6t phuong trinh hoi hgc cta phin f'ng di6u chri clo vi phan tich vai trdiria tirng ch6t trong ph6n irng (chAt khu, ch5t oxi ho5, chAt tao m6i truhng). Bni 25. Trinh bdy phuong ph6p c6ng nghipp sin xu6t flo, clo, brom, iot. Bni 26. a) T4i sao kai diAu ctrti HCt f Rhni dirng NaCl rin (tinh thC) ve HzSOa d0m dac? b) Tai sao nu6'c clo c6 tinh tAymdu nhung,d6 l6u ngoiikh6ng khi lai khdng cdn tinh ch6t nAy? "ifai sao c6 thO diAu ch6 Un, HCI tir *u-6i tuong ring vd axit HzSO+ dflm <tac md khOng di€u chti <lugc HBr, HI bing c6ch ndy? d) Tli sao di6u ch6 dugc nu6'c clo md kh6ng diAu chd duoc nudc flo? Bhi27. a) Tinh ch6 mui5i dn c6 lln 2 t4p chdt: MgClz vd NaBr' Ul Tinh ch6 axit clohidric c6 l5n axit HzSO+. c) T6ch NaCl, CaCl2tir h5n hqp (NaCf CaCl). "; fa.n c6c chAt rhnrukhoi h5n hqp gdm: NI-I4CI, BaCl2, MgCb. d) Ldm s4ch mudi 6n c6l6n: CaCl2,MgCl2, Na2SOa, MgSOa, CaSO+. Bni 28. a) X ld nguy€n tri thuoc nh6m halogen. Oxit cao nh6t chfta38,79%o X vA ttrOi lugng. X6c dinh X. b) Khi cho m gam kim lo4i Ca t6c dgng hodn todn voi 17,92lit khi X2 (dktc) thi thu du-o.c 88,8 gam mu6i halogenua. Vi6t phuonglrinh phin ri'ng d4ng ttSng qu5t, x6c dinh c6ng thirc ctrAt ttri Xz d6 dirng vd tinh gi6 tri m. p1iizg, Hod tan a gam mui5i mutii clorua cta kim loai ho6 trl II vio nu6c r6i chia thinh 2 phAn bing nhau. PhAn I cho t6c dgng v6i dungiich AgNO3 du thu tlugc 5,74 gam ktit tria. Nhring mQt thanh sit vdo phAn 2, sau khi mu6i phan img h6t th6y'thann siinane thdm 0,16 gam. X6c dinh cdng thri'c cta muiii ve tinh a? Bii 30. a) D6t ch6y hodn todn 8,6 gam h6n hgp Na, Ca cAn dirng 4,48 lit Cl2 (dktc) s€ thu du-o. c nhftng mu6i ndo? KhOi t"** t"oor"31f,ffi:lugng rlcrn ch6t halogen t6c dgng trct voi magie thu ilugc 19 gam magie halogenua. cfrng lugng don eh6t halogen cl6 t6c dpng hrit v6i nhdm t4o ra 77,8 gam nhdm halogenua. X6c itfnh t€n halogen tr€n. Bni 31. Cho 10,8 gam kim loai M (h6a tri III) t6c dpng htit v6i clo.t?olhdnh 53,4 gam mutii. X6c dinh kim lo4i M vd tinh kh6i tuqng MiOr, thr5 tich dung dich HCl36,5yo (c-l,2 g/ml) cAn ee eiAu ch6 luqng clo tham gia phAn irng trdn. BAi 32. Cho 47,4 gam KMnOa t6c dsng n6t vOi dung dich HCI dac. Tfnh th6 tich khi Cl2 (<Iktc) t4o thdnh. Cho lugng khi clo t4o thinh 6 trdn t6c dpng v6i 16,8 gam Fe (nung n6ng). Tinh luqng mui5i t4o thanh. BAi 33. Cho m gam KMnOa t6c dsng vdi dung dich HCI duthu dugc khi A. - Khf A tta. OUng t6i da vdi Fr O'nniet d0 cao, tao thanh 8,125 gam mui5i khan. Tinh m. Khi A t6c dpn! dri v6i 4,875 gamkim lo+i M (h6a tri II). Gqi t6n mu6i tao thdnh. Bii 34. Nung 15,8 gam KMnOn mQt thdi gian thu dugc 14,84 gam h5n hqp ch6t rin. Cho 14,84 gam h5n ho.p ch6t rin d6 thc dsng v6i dung dich HCI dac du thu <lugc V lit khi Cl2 (dktc). Tinh V' Bii 35. Hda ta1 57,7 gam h5n ho.p MnOz vi KMnO+ vdo dung dich HCI du_thu dagc 17,92 lit khi (dktc). Tinh thdnh phAn % theo kh5i tuqn"g m6i chAt tiong h6n hqp ban diu vd tinh khdi lugng m6i muOi thu clugc sau ph6n img. Bni 36. 1. Hod tan 1l,2lft (dktc) khi Hcl vdo m gam dung dich axit clohidric l6Yo,thu du-o.c dung dich axit clohiclric 21,11oA. H6y tinh khtii luqng m. 2. C6 185,4 gam dung dich axit clohidric 10%. CAn hod tan thdm vdo dung dich tl6 bao nhi€u lit khi hidro clorua (cr dktc) d6 ttru dugc dung dich axit clohidric 16,57Yo. Bni 37. a) Cho 69,6 gamMnOz t6c dpng vdi dung d.ich HCI dpc, du. Din khi tho6t ra cti vio 500m1dung dich KOH 4M (6 nhiQt OO ttro*e)."ia. Ainn nOng tt6-mot cac Jnft trong dung dich sau phin img (th| tich dung dich thay diii kh6ng ddng k€). b) Tinh kh6i luqng HCI bi oxi ho6 bcyi MnO2, bi6t ring khi Cl2 sinh ra trong phin fng d6 c6 th€ ddy dugc 12,7 gam 12 tir dung dich NaI. Bni 3g. Cho t7,4 gam MnO2 t6c dung h5t vOi dung dlch HCI dac 6y du. Todn bO khi sinh ra dugc hAp thp ht5t vdo 14.5,8 gam dung dich NaOH 20% (6 nhipt d0 thuong) t4"o ra dung dich A. H6i dung dich A c6 nhffng ch6t tan ndo? Tinh n6ng aO pnin irlm ctra ti'ng ch6t tan d6. Bni 39. a) Cho 4,8 gam 1 kim lopi R thudc nh6m IIA t6c dsng tr6t vOi dung.dlch HCl, thu tlugc 4,48 lit khi hi<tro (dktc). Tinh s6 mol hidro tf,u duo. c. Xrlc dinh t6n kim loai R vi tfnh kh6i luqrg mu6i clorua khan thu du<r. c. b) Cho 4,8 gam m6t kim loai A thuQc nh6m IIA vio 200 gam dung dich HCl20% thi thu dugc 4,48,Iit khi (dktc), X6c dlnh tdn kim loai A vd tinh n0ng t10 o/o cic ch6t trong dung dlch thu dugc sau ph6n f'ng. ffiJ3;.?lfl?.l;'rfti1,:1J* ?n-,';n1< tan h6t trong dung dich HCr thu ducv. c dung dich c6 khtii rusng rcrn hcrn u; oc noa tai 1911 ttaf , I gam mQt kim loai thu6c. nhgm. IJra can dirng 45 0 ml dung dich. Hct 2,0M, thu ducy. c !ffiT'e:t ;;:,;it;Y;"':r:Pi#;i;';^r;i;;;ryr#:'c'lia kim r"ii 'r"i'"ere tri v ;t,?il;b;s-do ,'oi",iu Jung "-f,l hffil?tJ&$61[j":';l"t?j# phan rng v6i 16 gam cuo thu du-o.c dung dich A. Xric dinh khtii ruqng va b) Hda tan l6.gam h5n hqp cuo vd flgo. vdo. dung dich !!1.{u,. sau ph6n fng thu du-o. c 32,s gammu6i. Tinh thdnh phan o/o theo th5ltoqng toi trtllt.ong hdn hep ban d:iu'vd tinrr r<rroiiffi'm6i mu6i thu trusc sau ph6n [,ng. Bdi 42' a) Hoi tan hodn todn 8 gam Fe2o3 bing dung dich HCI 0,5M. Tinh kh6i l:T,g mu6i thu cluo.,c, th6 tich dung *;:rf,.ijdd dring vd tinh n6ng dl mout cria "r'ai,rG Jr"e oi.r' *" pna"'*i'"t"", th6 trch dung dich thay d6i kh6ng b) Hod tan hodn todn 53,36 ea1. F.e:o1 bing dung dich HCI 0,5M. Tinh kh6i luong.mudi thu dugc, th6 tich i;;i:';:;T8c,^ dirng vd n6ng ttQ 'iovt "ua;. ;i;3,;,ofs dung dich;",pil; ftns 1"ii. ;a ,i"h^;;,s dich thay diii ?,illii;llil:"H:iL[ff*X.*"'mQt hidroxit cria m6t kim roai nh6m rA c6n dirng rrtit soomr dung dlch Hcr 0,8M. oi"n,n"?,J.iln 50 ml dung dich HCI 0,12M v6i 50 ml dung dich NaoH 0,IM. Tim ndng d0 mor c6c chiurong dung B i 44' a) cho 100 ml dung dich KoH lM vdo 100 ml dung dich HCI thu duoc dung dich c6 chira 6,52s gam ch6ttan. Tinh n6ng dQ mot/lit cria dring'di"h HCl d6 dung. - o .r,nu z,#fillJ#l*:i?r:t[il1r1" 1M t6c dirng het v6i r00 mr dung dich HCI rM, sau ph6n r?ng thu duo. c dung dich Bii 45' a) cho l'2 gam kim lo?i R c6 h6a tri kh6ng ooi can vira tl0 200 gamdung dich HCI a%thu ducr. c 201,1 gam dung dich A. X6c tfinh t€n kim lo.i g. rinh 1;a1*r,""5";6'ct-;;r;;;;J;ffig dich A. b) cho 6'05 gam hdn h-o. p gdm Zn vd Al t6c asni utra ctri v6i ,n ;;;"G'dich HCr fivo; c6can dung dich sau phdn ring thu ctugc 13,15 gam muOi ttrun. Tim gi6 tri cria"m. Bdi 46' Hda tan hodn todn 7,.7 gamh5n hqp x gdm znvitkim loaiA d.nh6m IIA vdo dung dich axit HCI thu duoc 0,672lit khi H2 (dktc). Mat kh6c nt5u troa tan hrit i,e iurn A tht dJd t.t'lng ialiio-itu",L o,.n HCI o,sM. rim t6n A. Bdi 47' a) Hod tan l0 gam hdn ho.p bQt Fe yd Fe2o3 uing"*at_tuqng dung dich HCI v.;a dfi, thu dugc t,t2lit hiclro (dktc) vri dung dich X' cho dung ai"rr x tdc-dsng vot"oung"dllrr Nabri ao. Rct'muihu rrugc dem nung trong kh6ng khfddn kh6i Iusng kh6ng do_i thu rruqc'ch6t,an v. i7"h-kh?r'i;;;;6,-;;w.' 'l\vr Luq b) cho m gam h6n hqp gom Fezo: vit ly \6c aune d,'i ? lft dung dich HCt 0,5M thu dasc t,t2lir khi (dktc). c6 c4n dung dich thu clugc 16,55 gam *u6ittran. Tinh V, m." Bni 48' a) Hda tan hodn toin2,l75 gam hdn hqp g6m 3 kim loai zn,\rg,Fe vdo dung dich HCI du thriy tho6t ra 1,344 lrt khi H2 (<lktc)' cd cpn dung difh tni auo. c ruu po tni.eusc m g;r;"6;-kh;.'iiJ'gra tri cria m. b) Hoa tan h6t m gam h5n hep A g6m c6 Fe ve'nbt titi r"ai rvr iiltil;;ilich HCr thu du-o. c 1,008 rir H2 (dktc) vd dung dich B. c6 c4n B thu du-oc 4,'575-gamr,6n t qp m;6i ilun. Tim gi6 tri cria m. Bai 49' a) Nhfng thanh kdm c6 khoi luo. ng 32,5 gam uao too ml dung dich AgNo3 0,1M. Sau ph6n rmg, l6y thanh k€m ra rt'a nhg, s6y khd cdn n{ng m gam. Hda tan m gim kim lopi ndy^tron-g or"g ol"r, HCI du rhu dugc v lft khi. Tinh m, v. b) cho 500 ml dung dich NaoH t,tul lnan qe "'.ii s.o.o ml iunfa;i,rt'eibr, 0,8M thu duo c dung dlch A vd ch6t r6n B' Tinh kh6i luo. ng"crt6t .6n e ud nong d6 motilfimSi .ner,rong dung dich A. Bni 50' Trong phong thi nghiem c6 circ f6a ch6t: cao, {{uo, Mppl_axit HzSo+ 70yo (D:r,6lgl"mr) vd Nacr. H6i c6n phdi dirng nhfrng chdt gi vd -v6i lugng ch6t ta uao nnicu ac oia" .rrc 254 gamclorua v6i? Bni 5l' a) cho 2l'4 gam X9n.lr.on Fe vit!2t5c.dsng.v6i.dy.s dic.h HCI du thu crusc 7,84 1it khi (o ttktc). Tfnh thdnh phin%o theo khdi luong m6i ct'diirong h5n hqp ban iau vd trnfr'\13; ffijiiiffi;l thu duoc sau ph6n ring. b) Bitit 2l'1 gimhdn hqp 96:^zova Al tric dpng.vira rtri v6i 650,1! dung dich HCt 2M: Tinh thdnh phdn% theo khtii luqng t5i Jltat tr""g nal?np #" aa" "etr"[i.rr?i'rusne m6i mu6i thu itu-o. c sau ph6n img. Bni 52' cho I l'5 gam hdn hqp A (cu, el, 19) yd9 dung dich HCI du thu dusc 5,6 titkhi (ttktc) vit 3,2gam chAt r6n kh6ng tan' Vi6t PrHH.c6c nni".q"! "i ti"i' l' r.r'?i t.,o":-;g! thd;;iu !a""r,op. Nc, nung n6ng hdn hqp A rr6n sau d6 cho t6c dung v6'i khf cto itrc tfch JIo (dkrc) cdn dirng u*"u an ld bao nhi€u? Bni 53' cho 1,92 gam hdn hqp cu, zn, Mgt6c dung. vira dri v6'i dung dich HCI thi thu duo.'c 0,672 litkli (dktc) vd dung $fii*.""X1T3"r:jffii,*L*. onn thi tf,u a"-"" kZrt,iu s' il""?;i3';;;'ffi; r.r,b"g ru,i ac" [i,a'ir**g kh6n! :lYiclc6c phucrng trinh phdn irng x6y ra vd rinh kh6i luqng mSikim to4i trong hdn hqp ban rt6u b) Tt'h6n h-o. p cu, Zn, Mgviet p[uong trinh ph6n ring aicu"ctr6 ri6ng 3 *16; ;;;;;. BAi s4. Cho h5n hqp gom Cu vi Mg vio dung dich HCI dl thu tlusc s,6 lit khi (dktc) h9$.lit y: m3t-c,lrpt r6n kh6ng tan B. Dilng dung oi"i nrsoo clac nZng dc ]lo; tan hoirn tod'n ch6t rin B thu dugc 2,24lit khi soz (dktc). vi6t c6c PTFIH xiy ra vn tiih t<h6i luqng h5n hqp A ban dAu. BAi 55. a) Cho 100 ml dung dictr mu6i an n6ng clQ l,5M t6c dpng v6{ 100 ml dung dlch bpc nitrat.lM thu dugc dung ffii,;;; ffi *#; ililil ;5'e ao mJ c6c chAt tan tron[ dung dich A. (cii ttte fich chh rdn kh6ng ddng kq , b) Cho V ml m6t dung dlch c6 hdatan 5,85 gam NaCl tai dunE vdi 2000m1 dung dich AgNO: 0,1M.Tim khdi lugng ki5t tria thu dugc. Bii 56. a) Cho 400 ml dung dich-gom NaCl vi KI t6c dsng vira dri v6i 250 ml dung dich AgNO3 2M thu dugc 103,775 ;; ke;". fi"h d;J;.nioi "rt6,"oong dung di"h _d{y va iintr t<troi lusns chc chhtc6 trong dung dlch sau phan ring. b) Cho tir 500 gam dung dlch .O ttOu tun 16,65 gam h6n hqp NaBr vd KBr vdo V lit AgNO: du 0,1M, thu ducr. c 28.2 eamk6t tra. Tinh.n'i;;;;#;;;e*;5i uoi,ione dung dich ban ddu (coi th6 tich dung.dich kh6ng thav d6i ffi;?6j ";1in1, trre tich durig aicit agNo, cen ae lnm k6t tria hoin toin lusng brom trong dung dlch ban cldu. Bni s7. Cho 31,125 gamhSn hqp NaCl-vd KCI t6c {ung vdi HrQoo ilfm d{c, du o 4500C thu dugc 36,75 gam mudi' iilri'tirt." trrair"6; r"6r "n6i trong h5n hqp ban dAu vd tinh thc tich khi HCI (dktc) thu dusc sau phaLn ring' Bni 5g. cho clz (dktc) t6c dpng vtra dfi voi li,z gam h5n h9p NaBr vi NaI thu dugc 35,1 gam muiSi. Tinh thc tich khi Clz dlding vi tinh kh6i luo.ng Bt2,l2thu du-o. c sau phin ring' Bai 59. cho 2,355 gam h6n hqp Mgco: vd Al t6c dpng. <tir v lit dung dich HCI 0,46M thu ducv. c dung dich D vir 1,288 lit h5n hqp khi E (dktt. Tinh V ua tinit n6ng dQ mol c6c chAt trong dung dich sau phin irng. Bni 60. Hda tan 174 gamh6n ho.p 2 mu6i cacbonat vd sunfit ctra ctrng mOt kim loai kiAm vio dung dich HCI du. Todn bO khi tho&.raaoo" rr'af irru i3iir,iA" uoi 500 ml dung dlch KoH 3M. 1im tcn kim lqai kiAm. Bai 61. Hda tan 5,41 gam h5n hqp mu6i cacbonat cta natri vd kali vta chi trong 220 gam.dung.dich HCI 0,45M (1,1 g/ml) thu dugc dung dich x ve khiy. Thh;r" kh6iioq"g.ar mur5i c6cbonat tron-g hdn hqp ban tlau vd tinh thiS tich cira tr'6'zi6C,-t,i ut n # tinrt n6ng dQ phin trim cria X' Bni 62. cho 25 gam dung dlch hoa tan NaBr vd cacl2 c6 t6ng n6ng dQ l 13% vdo 180 m.t .dlne.ajch AgNo3 0,5-M' f ry, ia"i, tc,iri tr,cil-"a" nu6c lec mQt luo.ng du HCI thi thu diqc s,7+ gam ki5t tria. Tinh thirnh phAn phan trlm theo khoi lugng mu6i trong h5n hgp ban dAu. !. , nei is. c6 m6tir6n hqp'gdm Nacl vd NaBr, rrong d6 NaBr chi6m l0% v€ ttroi luqng' Hoi tan hdn hqp vdo nuoc roi cho khi clo lQi qua d6n du. Ldm bay hoi dung dich thi thu aoo. " *u5itttan. H6i nr6i'rulng hdn hqp dd thay aoi nhu tn6 ndo so v6i ban dAu. Bii 64. Dung dich A chria NaI vd NaBr. Cho Br2 du vdo dung dich A thu ttugc mu6i X c6 ka6i lugng nho hon kh6i lugng cfia hai mu6i b;;. dA; ia u gu*. Hod tan X vdo nudc du-o. c 9yTg.9J"h B. s,uc Ct2 vira <tfi vio B, thu clucv. c mu6i Y co il-biT"*g;iro rr* rurAi lusng "",iu *u5i X h a gam. X6c dinh % khdi luqng cdc chAt trong dung dich A. BAi 65. Hda tan 38,1 gam rr6i ttqp cacor, MgcO3, BaCOr vio dung dich HCI du thu dugc dung dich A vd 6'72lit khi CO2. CO c4n dung dich a thu ituqC m gam mu6i khan, tinh m' Bni 66. cho 225 ml dung dich HCI a mol/lit tir ttr vdo m gam dung dlch Na;!o1 3I,8Vo, thu duo. c dung dich A vd 448 ml COz (dktc). Cho nuoJv6i trong d6n du vdo dung dich A, thu duo. c I gam k6t tfia. Tinh m vi a' Bii 67. Nh6 tt ttr ttrng gigt cho di5n het 500 ml dung dich HCI lM vdo 600 ml dung dich KzCO: 0,5M, phin irng xong thu duoc dune dich A vd khi B (dktc). - ;t' ri"r,Trte trch khi B vA tinh mrOi tugng c6c mutii hda tan trongA. . . . ,. . bi Th€m nu6c vdi trong du vdo dung dich A t4o m gam k6t tria' Tinh kh6i luqng m' Bni 68. cho tir tt 100 ml dung dich HCI 1,5M vdo 100 ml dung dichNwcos 1M; th6y tho6t ra v1 lit_khi (dktc). cho til ,i, roo ml dung dich Nazco: lM-vlo 100 ml dung dlch HCI 1,5M; thAy tho6t ra vz lit khi (dktc). Tinh Vr, vz' Bni 69. Dung dich x .rr,io t 6n hnp g6m Na2co: 1,5M vd KHCo: lM. Nh6 tii tir tring gigt cho d€n h6t 200 ml dung dich HCI lM vdo 100 ml dung dich X, sinh ra v lit khf (d dktc). Tinh gi6 tri cira v. BAi 70. cho 30,6 gam hbn rtqp A g6m Q.{a2co3 vd caco3) t6c dpng vdi mOt lugng vria dri dung dfch HCI20% tao thinh6,72lit ktri (dktc) vi mQt dung dlch B- - .i 'f,nft f.hOif"q"g m5i ctrAt trong A vd tinh khOi luqng dung dich HCI di dirng. bj Tinh ndng d0 Yo chc ch6t tan trong B' Bii 71. a) c6 1g5,4 gam dung dich HCI iox. cAn hda tan vdo dung dich d6 bao nhi6u lit khi hidroclorua (dktc) de tnu duo. c dung dich axit HCI 16,70A. b) cdn pha hai dung dich Hcl 0,2M vd HCI 0,5M theo ti lC the tich ndo ee tnu duEc dung dich c6 n6ng d0 0,4M. ;i a;, l6y bao nhi6u rnt dung dich HCt20% (d=l,l g/ml) vdo nudc do ctuqc 500 ml dung dich HCI 4% (d=1,02 g/ml). d) Hoa ta' g,96 lit khi HCI vio m gam dung dich Hclz}o ,thu <luqc dung dich HCI c6 n6ng dQ Z2%'Tihh m' P,di 72. a) 31,6 gam KMnO4 t6c dung v6'i dung dich HCI du dugc V lit Cl2 (dktc). Tinh V (hiQu suAt cta phin ung ld 7s%). b) Cho 26,1 gamMnOz t5c dpng v6'i dung dich HCI du tdugc 6,048 lit Cl2 (dktc). Tfnh hieu sudt cria ph6n f'ng. Bni 73. Nung 12,87 gam NaCl v6i HzSO+ d[c, du thu dugc bao nhi€u lit khi o <lktc vd bao nhi€u gam mutii NazSOa, bi6t hiQu su6t ph6n ring liL90%. B^i74.Cho I lit (dktc) HTthc dsng v6i 0,672litCl2 (dktc) r6i hoa tan.s6n phAm vio nu6c dr3 dugc 20 gam dung dich A. L6y 5 gam A t6c ipng'vdi dung-dich AgNO: du thu cfuo. c 0,17 gam ktit tria. Tinh hiQu su6t phin ring giffa H2 vd Cl2 (gi6 sli Clz vi H2 kh6ng tan trong nu6c). Bii 75. H5n hqp Z,0t6 tit(dktc) khi A g6m H2 vir Clz c6 ti khdi hoi d6i v6'i heli ld 8,1667. Cho h5n hqp A phin irng 6 nhiQt dQ cao thu tlu-o.c B. Slrc B'qua dung Oicn AgNO3 thu dugc 8,16 gam kiit tta. Tinh thdnh phAn phAn trdm theo th€ tictr c6c khi trong A vdL trong B vd tinh hieu suiit cria phin ring giiia Hz vd Clz. Bei 76. Cho3,72 gam hdn hqp g$m Al vd Al2O3 tan dir trong 131,4 gam dung dich HCl, thu ilugc 3,36 lit khi (dktc). l. Tinh thin[ phin phAn tiem theo ttrOituqng cira AlzO: vd tinh n6ng <t-6 phAn trdm dung dfch HCI cAn dirng'. Z. Ddn todn U6.ttri ttru duo.'c cr tr6n qua binh tlpg 24 gam CuO, sau mQt thdi gian thu dugc 22,4 gam chdt rin. Tinh hi€u su6t phen fng ndy. Bhi 77. Cho mQt muiii- halogenua cria m0t kim lopi chua bii5t hOa tri vio nu6c di5 du-o. c dung dich X. N6u l6y 250m1 dung dich X (chira 27 gam muOi; cho t6c dpng vdi dung dich AgNO3 du thi thu tlugc.57,4 gart k€t tfia. Mlt khSc dien pnai tiZdung dich X tl6n thi c6 6,4 gam kim loai b6m ocatot. X6c dinh c6ng thirc mui5i. Bef 78. Hod tan ?.,08 gam mQt mu5i halogenua cria kim lo4i ho6 tri II vdo H2O, sau <16 chia ldm 2 ph0n bing nhau. MQt phAn cho t6c dpng vOie.gNOr (du) thu doo. " t,+3S gam ktit tria. MQt phin cho tic dpng v6i NazCO: (du) thu ducr. c 0,985 gam kiSt tta. Xric dinh c6ng thirc cira mu6i. Bii 79. Cho m gam h6n hqp mu6i cacbonat cira kim loai A vd B o hai chu kj' li€n ti6p nhau t6c dirng dt v6,i V ml dung dich HCI 1,25M thu du-o.c 7,lgZ lit khi (dktc) vi dung dich D. Cd cpn dung dlch D thu $uo.c 8,08 gam h6n hqp mu6i kiran h6a tri II. Tinh * ud V. XAc dlnh t6n m6i mu5i vltinh thdnh phin phAn tram theo kh6i lugng m5i mutii. Bni 80. Nung m gam h5n hqp g6m Z muOi cacbonat cria hai kim lo.ai A vd B ddu c6 hod tri.Il. Sau mQt thdi gian thu dugc 3,36 tit tctri CO, (dktc) ua "On lai ch6t rin Y. Cho Y-t6c dr,rnghl5t v6i dung dich HCI du r6i cho khi tho6t ra [6p thtt hodn todn boi dung dich Ca(OH)2 du thu dugc 15 gam k6t tria. PhAn dung dich dem c6 c4n thu <lugc 32,5 gam h6n hqp mutii khan. Vii5t c6c phu'ong trinh phin ring vd tinh m. BAi 81. Khi ilun n6ng mu6i kali clorat (kh6ng c6 xirc t6c) thi mui5i ney bi ph6n hiry d6ng thcvi theo 2 phuong trinh h6a hsc sau: 2KCIO3 + 2KCl + 3O2 (1); 4KCIO3 + 3KCIO+ + KCI (2) ei6t ring khi ph6n hriy hoAn toin 73,5 gam kali clorat thi thu dugc 33,5 gam kali clorua. Tinh ph6n trdm kh6i luqng KCIO3 biph0n hriy theo m6i phin ring. Bni 82. a) Cho h$n hqp NaCl vi NaBr t6c dpng v6'i dung dich AgNO3 thu .ttuqc luqng k6t tta c6 khdi lugng gAp hai 6n t<trOi luqng h6n hqp cfiu. Tfnh % khdi lugng ctra NaCl trong h6n hqp ban dAu. b) Cho 2509 dung dich Brz vdo I l-it dung dich chria 59,89kI. Sau khi phin ung k6t thric thu clu-o. c 45,59 mu6i. X6c dinh ndng dQ Yo crtadung dfch Br2 vi thinh phAn mudi thu clugc. Bii 83. Khir hodn toin 4,06 gam mQt oxit kim loAi bing CO d nhiet.itQ cao thAnh kim loai. Ddn todn bQ khi sinh ra vdo binh dgng dung dich Cu(Od, du, itrAy t4o thinh 7 gam ki5t tria. N6u l6y lugng kim loai sinh ra hda tan h6t vdo dung dich HCI du thi thu dugc 1,176 lit khi H2 (dktc). X6c dinh cdng thirc oxit kim lo4i. Bni 84. Hoa tan 4,82 gamhSn ho.'p 3 mu5iNaF, NaCl, NaBr vio trong nu6c tlugc dung dich A. Suc khi Clz du vio dung dich A, riii c6 c4n Cung Oicfr thu clugc 3,93 gam mu6i khan L6y mQt nria lu'qng mu6i khan ndy hoa tan vdo nu6c r6i cho phan img vdi dung ailn AgNOr du thu euqc +,:OS gam k6t tia. Vi6t cic phuong trinh ph6n irng xiy ra vdr tinh phAn tram kh6i luqng mu5i trong4,82 gam hdn ho.p mudi ban dAu. Bdi 85. Cho 16,7 gam h5n h-op kim lopi (Mg, Al, Zn)t6c dpng vdi dung dich HCI du, thu dugc l3,44lit khi Hz. N6u cho 16,7 gamkim lopi tr6n t6c dpng v6i dung dich HzSO+ tlflm t[c, du thi thu ducv. c bao nhi6u lit khi SO2 (dktc)? BAi 86. ll,2 lit (<tktc) khi A g6m clo vd oxi t6c dpng hiSt vdi 16,98 gam h5n hqp g6m Mg vd Al tao ra 42,34 gam h5n hqp mui5i clorrua vd oxit. l. Tinh%o the tich m5i t<tri trong h6n ho. p A. 2. Tinh kh6i luqng cria Mg vi Al trong h6n hqp. BAi 87. Cho 7,3 gam khi hidroclorua vin 92,7 ml nu6c cluo. c dung dich axit A. l. TinhC%; Cy cria dung dich A. 2. Tinh khdi lugng dung dich H2SO4,98% vi mui5i NaCl rin can O6 di6u chi5 lugng khi hitlroclorua tr€n. 3. Dung dich axit A thu duo. c cho h6t vio 160 gam dung dich NaOH l0%. Tinh CYo chc chdt trong dung dich sau phAn r?ng. 4. Tinh th,5 tich dung dich AgNO: 0,5M cAn d€ t6c dpng vira dir v6'i 10 gam dung dlch axit A trdn Bni sg. oxit cao nh6t cira nguy6n to R co dang RzOz. Hqp ch6t khi cria n6 v6'i Hidro chua2,74o/ohi<lro vA tchoi tuqng. a. Tim t€n R. ;. N6u "t o O,z5 mol don chAt cira R t6c dgng vdi hidro (vria dri) thu elugc h-op chAt khi. Hoa tan khi niy vdo nu6c thu dugc 200 g dung dich axit. TinhCVo cria dung dfch axit ndy' Bef g9. Cho 5,6 gam Fe t6c dpng voi75 gam.dung dich HCI l4;.6Yo thu dugc dung dfch A vd V lit khi kh6ng mdu (dktc). a) Tinh V vd n6ng dQ phAn tram chc chittan trong dung dich A' b) Suc khi Clz du vdo dung dich A duo. c dung dich g, 6 .4n dung dich B thu du-o. c m gam mu6i khan. Tinh m' Bni 90. Cho 2,02 gam h5n hqp Mg ud Znvho c5c I dgng 200 ml dung dich HCl. Sau phan r?ng c6 c4n dung dich clugc +"g6 g"* .1,6i rai. Cho 2,0z,sq* har hgp trcn vdo c5c 2 &tng 400 ml dung dlch HCI nhu tr€n, sau phan ring c6 can dung dich dugc 5,57 gam chdt rdn. a) Chring to o c6c Z nm toai tan h6t vi tinh th6 tich khi thoSt ra 6'cdc I (dktc). b) Tinh n6ng dQ mol cia dung dich HCI dA dirng'. " "i Tinh phAn tr6m kh6i lugng m5i kim lo4i trong h6n hqp ban d6u. Bni g1. Hda tan 57,7 gam h5n ho. p Mno2 vd KMnOa vio dung dich HCI du thu dugc l7,92lit khi (dktc). Tfnh thdnh ;;;;;irt "" r.rrairr"Jn"g;ai.herirong rr6n hsp ban dAu vdtinn moi lusne mdi muoi thu dusc sau phin img. r B^i92. cho 25 gam dung dich.c6 chtn3,25 gam h5n hqp hai mutii NaBr vd CaCl2 t6c dgng vdi 108 ml dung dich AgNo3 0,5M. Sau khil"Jq6 kbirtr",irrer'oun! oi.h HCI iu vdo nudc lec thu th6m duo. c 0,574 gam k6t tfra tring nfia, ri"nn n6ng d0 C cira mdi muSi trong dung dich dAu' Brli 93. Cho 3,gg gam hdn hqp A g6m KBr vi NaL Hda tan A vio nu6c, th€m vio cl6 78 ml dung dich AgNol !9'/: (d:1,09 g/ml). r.q. t6t t,iu. N"o" l6c c6 the phan ung h6t viyi lo ml dung dich HCI 1M. X5c ttinh thanh phdn % kh6i i.,*e .aE.Lr6;trong hdn hqp A vd tle tich kni hidroclorua (dktc) d6 pha clugc dung dich axit HCI dd dirng. Bni 94. Hda tan 5,41 gam h5n h-q p muSi cacbonat cta natri vd kali vta dri trong 220 gam dung dich HCI 0,45M (i,1 e/ml) thu dugc dung dich x va khiy. Ti"h;r. kh5i tu'o. ng c6c mu6i c5cbonat trong h5n hqp ban dAu vn tinh th€ tich cria i tt iitC,-t j utrn ui tinn n6ng d0 phdn trim cira X. Bed 9s. c6 m6t dung dich chria d6ng thdi HCI vi HzSo.q. Cho 200.gam d11B dichd6 t6c dpng v6i dung dich BaCb du thi tao thdnh 46,6 gu* .tt6, k6t tria. iqc b6 k6t ttra, thu l6y phAn nudc lqc. Dd trung hoa nu6c lQc ngudi ta phii dnng 500 *i aung Aich frbl"t,;M. ii"h n6ng d9 C5 cria mdi axit trong dung dich ban dAu. Bni 96. oxit cao "ha;;;i;;;?n.td."g R or. Hqp "[6t ruti cria n6 v6ihiclro chtra2,T|Yohittro vA khoi luqng. 1. Tim t€n R. ;. NEu "rro o,z5 mol don ch6t ctra R t6c dpng v6i hidro (vira dir) thu du-o. c hqp chAt khi. Hda tan khi niiy vdLo nudc thutlugc200gdungdichaxit.TinhC%ciadungdichaxitniy. Bii 97 .Eun 8,60 I gui h6ftqp A gdm NaCl, KCl, NH4CI diin khoi luqng kh6ng ooi. cnat rin cdn l4i n{ng 7 ,561 gam, dugc hda tan trong nu6c thinh i titiung dich. giist rin g c& 2 ml dung dich phin irng vrla dri v6i 15,1 I ml dung dich bac nitrat 0,2M. tintr ihanh phiin% ktr6i luqng ctta Na, K, N, vi Cl trong h6n hcr,p. BAi 98. TrQn 400 gam dung dich BacL 5,2 Vo vu 100 ml dung dich H2so4 2l7a (d=1,L2 elml). 1. Tinh khdi lugng kdt tira thu duo. c. 2. TinhCTo c6c chd't trong dung dich sau phin fng' nai qq. JrjC trJ" r" n 5,92gam h6n hqp hai mudi Narcb, vd NaHCo, cdn 200 ml dung dich HCI 0,5M. Tinh thd tich khi tho6t ra (Ottc) va Vokh6ilugng cdc mudi trong h6n hqp ddu- b) Hba ""ngr-ii,s gim h6n tro.p mu3i cacbonat cira kim lo4i h6a tri I vi mudi cacbonat ctta kim loai h6a tri II bang dun! dich HCl, tnu auJ" 4,4g litnti e (cn") vh dung dich B. Ndu co can dung dich B s6 thu duoc bao nhieu gam kdt tira? BAi 100. Ngudi ta c6 thd didu chd clo bnng cdch cho HCI d[c, du t6c dung vdi ml gam MnO2, m2 gam KMnO4, m3 gam KCIO:, m4 gam KzCrzQt- 1. Vidt cr{c phuong trinh phin rlng xiy ra' ). oe io*g .fo th"u duo. c d cac truong trqp ddu bang nhau thi ti l9 rnlirn23rrl3irno sE phiLi nhu thd ndo? . 3. N€u m,=mr=ffi3=r1l+ itri turong ho,p"ndo thu duo. c nhidu clo nhdt, trudng hqp ndo thu duo. c ft clo nhdt? 4. N6n ding u.noniu huy aung-aicii nudc v6i trong dd loai khf d6c clo trong phbng thi nghiQm. Tai sao? . phuong trinh h6a hsc sau: 2KCIO3 + 2KCl + 3O2 (1); 4KCIO3 + 3KCIO+ + KCI (2) ei6t ring khi ph6n hriy hoAn toin 73, 5 gam kali clorat thi thu dugc 33 ,5 gam kali clorua. Tinh. 68. cho tir tt 100 ml dung dich HCI 1,5M vdo 100 ml dung dichNwcos 1M; th6y tho6t ra v1 lit_khi (dktc). cho til ,i, roo ml dung dich Nazco: lM-vlo 100 ml dung dlch. KBT,I(I b) Dung dich: NaCl, NaBr, Na2CO3, 12. c) Chdt rdn: CaCO:, K2CO3, NaCl, KNO3. d) Chdt rin: AgCl, BaCOr, KCl, KI. e) NaCl, NaNO3, BaCl2, Ba(NO3)2. f) Dung dich: NaCl, NaBr vd