Giải chi tiết 1 số bài tập sử dụng Định luật bảo toàn electron

qhlyT qii lgA\ gNG9{y H9$ ryIq chdt i rdn crAr roAN nANc PHttoNGpnApsAo TOANELEqI+ONc6c p6 -?gjUQt Fe ngodikh6ngkhi mQtthdi gianthu dusc 12 ghin hqp Cflu dich HNO: lodngth' FeO,FerO+,FezO:,Fe du tldu tan irodntodnh5n hap d6 bing dung dugc2,24litkhi NO nh6t(dktc).Gi6 tri ciram ld ^ n 20'16q ^ , D' ^, g C' 15,12 B 10,08g A 5.04e tl?y todnt7,4 grrSirrqp3 kimlopiAl, Fe,Mg trongdule-dich.Hgl cau z ni u"t'"ihodn lOcldy dich CuSO+{u, tho6tra 13,44fitklti NC" ctro3i,8 g h6n hqp trontdc dUngvdi dung thi thu dusc du n6ng HNo: dich dung v6i dpng ritgtlc phin sau aoq ;;;;";O ;;6trh"itr' V lit NOz(dktc).Gi6 tri V ld D.76,82|it C'53,761it 8.22,4|it A.||2'|it t6t chkhiNo thu ciu Hda tan hodntodn28,8g kim 1o4icu u1o^dulgdichtlNol,l?alq' rnqor, ThiStich dugcdemoxi h6athdnhNoz riri-sucvdonu6c c6 Ozd'chuy€ntri5ttrrann Oz(0 dktc) dd thamgia vdo qu6trinh trOnld D' 8'96lit g.1,56lit c 6,72lit A 5,04lit nhau: C6u Chiam g h5n hW2kim lo4i A, B c6 h6atri kh6ngd6i tnann2ph1'nbing phAn1 tanh6t*ng dungdichHCl, tqoryt1,792Litgz (itktc) p oxit' PhAn2 ntngtrong oxi thu dugc 2,84 gh6nh-o Gi5tri criam ld C ' , 2g , , , 4g A , 6g nhau: Cffu Chia 38,69h6n hqp gOtttp.ia M co h6atri AuynnatthAnhZ ynaltbdng (itktc)' dA"l' fun utruE'rit ong ) lit Oungdich HCI th6ytho6tra 14'56litHz pht" 2: Tanhodntodn,ttrg OungAicnHNO: lo6ngn6ngth6ytho6tru ll,2lit NO nhdt(dktc) a) N6ngd0 rnol/l cta dungdich HCI ld D 0,65M c 0,55M B 0,25M A 0,45M phin rlng6 phAn1 ld b) Kh6i lugng h6n hqp mu6i cloruathu dugc cOc4ndungdichsau g D.54,65 g c.55,64 g B- 65,45 A , 4g c\ Yo^criaFe trongh5n hqrpbandduld O KCtquf,kh6c c , 30 h , 5% A , 5% d)- Kim lopi M ld D' Cu C' Al B Fe A.Mg HNOz2M' thu tlugc Cflu Chotanhodntodn3,6 gh6nhqp gdmMg vd Fe trongdungdich dsngv6i dungdich dungdfchD, 0,04mol NO vd 0,0i mol NzO.Cho dungditl P t6c N"dff ify do, lgc vd nungk6t ttia tt6nttrOi lugngthu dugcm g chdtrdn' a) Gi6 trf ciram ld D , 8g c , 2g B , 6g A , 6g b) Thctich HNo: ddphin ring ld D 0,13lit , lit thdi s-h#;;Hg6m i-l.?rt*sc16,08 ! :ntu ca,',.ti*;lt-",p.t o,,JrJolLtiltmQt n6" hqp H tr6n bing dungdichHNo3 lodng, *", ao ia r"""a oxit crian6 Hda tantrctiuqng thu dugc 672mlkhi No nh6t(dktc).Tri s6 criax ld D) Kh6ngth6xlc dinh c) 0,24 B) 0,2i , A) 0,15 c6 chria0,075mol dac Ciu Hdatan a (g; Fe'o, b?ngdungdictrHzSo+_dam 16ng'"}1",'d":ra' thu dugcb! mOtmuOirra.O 168ml SOz(dktc)duy nhdttho6t HzSO+, a) Tri s6 criab ld D.l2g C.6,0g B , 0g A , 0g b) Tri s6 criaa g Fe*Oyld D) 3,48g c) 4,64g B) 2,4g A) 1,08g Chuyantlii: PHANU]'tc OXYHO+*:5gg c)' Cdng thric cria Fe*Oyld C) FerO+ D) khdngx6cdfnh9Yqt._ ej FezOr a; r.O _r ee C6u Khi chom g kim lo4i Al phin img hodntodnvdi dungdicfrHzSOl.{a- {At:.ning diQntir? rqora1,24Iitkhi Sbz thoiltrathi lugngkim 1o4iAl ndy dd trao ddi baonhi6u D) Nhan0,6mol A) Nhudng0,6 mol B) Nh4n0,imol c) Nhucrng0,2mol HNOr r6t lodngc6 Cffu 10.Hdatanhoantodnm g bot kim loai Al vdomQtluqngdungdich vdi lugngdu du, c6 0,03mol Nz nhSttho6t ra.Lhy dungdfchthu dugc cho t5c dpng ph6n dungdich xrit, dun n6ng,c6 672 ml nh6tmot (dktc) c6 miri khai tho6tra c6c hodntodn.Tri s6 criam ld ung xay -A)3,24 D) 3'51g C) 4,86g B) 4,32g g ceu rr u6nnip X g6mzii^'toqi n, B c6ho6tri khongo6ltam vdn.chia0,8gh6nhqp X thdnh phAnbing nhuu' phAn l: Tan hodntoan HzSO+,gi6i ph6ng dugc224ml Hz (tlktc) PhAn2: Bi oxy ho6 hodn todn t4o m g h5n hqrp2 oxit' ttru dusc o phAn1 ld r"*g na" hq,'pmuoi sunfatt 4.2-vvwl *: ( qw f' vc {*' ['"= /xo \Af ; x '{"'; Tt^*ffi]f ,^flkt W,= 'ro p) SknJw)s-r t fr*o' t Lilc"c"rog)L'?'no o\ ^ \ = v, = o/'lL / ^ -{ ,'C"Cwr\, = tLA,o + 2'o/42o't)S +0'09 + u,25b= )'a,+B b = \28 ) Lo.,w3 - 4-+ I tr'tu ,ll|,a{ar > #, (v**', IRL 5rr?A { trl fr) x r\,tf* ,h ;,'th &r-#, -) th-Kt(* l\L_ lrutwt ,n"= \ L A{ * ') o+92 'T1, ilLg{ 8' fz4fL -/ i ,ir) cx) T"rot qol no1 \ != -y- -n* 7Aq \ T,1stnqrx' , c*(ks(que*'|) ofrr(g,fr gt frzv) u( =)NtT il,L qP4 d*r yn_>d-'t ^Tnoi, rr=:; :,;:;l=, \;= tLt"' ,{ -r +}0+f) r)r ++pp f,ilu"" Ua" q' ft, s 2x* Lr22 + wuw " sv U t!+2 $r9o*hn,M *r4 ,?Ft,o,' fr.ttwi)]* ua\ &*-"0 o)CI6 { -11,u,9L9Tr, lo*' 7* }-*il* \ f iuz- T e- 7- /* et N 6{>* 3e-4 qb5 A)A5 < =) 0l^ = - ) n ,/ -r 6e> 0'Y1 a+) gN f{) l)5 v o[A + 4Oo to\/ -/ r i,,-_ )+ 2)r1 %T =) (L) ? / = ex1 l2Y rh1 ri g)j\, ) 4:L7r1 g)5=) 1f.=-o,3)6 /i+ c) cn t e-3"1 *t12 tttNo>!>x[tr ::' (o, ('t''tt-" 4h' r't- -+ +^, C* uI lo-')'f,' n azn lt?p Nor"P /- -L o n\ \),1 t a-n \ -? >\' , Yt' ==.-7W 90, t-itto; ( -l(^', SLBTu t {o-*' ^/\ &=Ot o /}9''X''' {''t|@hD,tu -,f yl *@\ hl(al"-l) {1" jd., i9,2ff!n" ///Lt ,^1A,1-= > l+,l1\; wuL w'h' 'YYlw't fuJ " o1)""1 oLhTr"{ , +4* qLf L nut+ ? %tsu, L+ tx A+l :_ *-l \,*' @ -" + tftt k l^'r tw 6* T alp 'b '' ,/ l+, t- (o,v9'"') \ tr*,Lf - ' / o t{*{ d fy+ tt*} 4n, t fn @,'z-*t) lL" Llgdus" & = 0,C5"'L b) = 't+'25 15(o* WYU= -) a*b = 0ll -ls=0,0'6' d, 1-4 f +wtfiu2e4'" -i, F2_ V: nu !utuo n Q-De.4 N*ro ,' a- qr"O , -> f p-\ t''wq-Y frdt ft* {W Wn, +^d wf- (f-,t) v / [ n 8q a\ o'\ N [\= =bf nN{) *t\ It' r'w+ illnhy *ryw')'" 4l*'= | I \" )+s(anQtffiw= 4uL w=\t I >0 lat + 2L 2l ,r8 t1, | II \ 'r L} \, ... t1orad phAn2 ld D' 3 ,11 c 4 ,11 8.8,22 A.2,r8 8,96lit cau 13 Hod tan hodn toin 19 ,2g kim lo4i M trongdungdich HNor du thu dugc (Att.l hdnhqp g6mNOzvd Nb c6 ti le th6tich 3 :1. X6c t1!nhkim loai M? D'... thu du, cdu 14 .Hdatanhoirntodn 11, 2 gFevdoHNOI B g6mNO vd mot x, v6i ti 19 thc tich ld 1: 1.X6c dinhkhi X? D' NzO C' NHr B NOz A NO Cffu 15 .ChomQthd;;khiCO quam (g) FezO:nungn6ng,thu dusc 14 g h6nhqpI... c6cph6nringtrongqu6trinhtrenld 0 ,15 mol Tinh m? D' 13 9'2g C' 13 ,92g B 16 2'4g A 20,81g h-qpjn?t.'i Ciu 51. Khi dot 37,9 ghSnha'p ni, introng binh Clo thu dugc 59,2g 19 .t (dktc).Tinh khoi c[" 1oa,rrgpndy tu" frct