[r]
(1)PHoNG GrAo DUC vA DAo lAo otBN csAu
or rnr voNG I, cIIoN HQC SINH CrOr HUYEN LOp 9
NArvr Hec 2016 -zor7
Mdn H6a hgc - ( Thd'i gian ldm bdi 150 philt)
Cdu (5 di6m): Eti thuc hi6n chuy6n h6a tu mudi kim loai ngudi ta co the ldm
b*g citc chch sau d6y: Mu6i t6c dung v6i kirn loai; diOn phAn n6ng chiy mu6i; cliQn
phdn dung dich mu6i; nhiqt ph6n hoAn todn mudi; mudi t6c dpng v6i mu6i Hdy chgn c:ic iuu6i cu th6 thich hop v6i m5i c6ch tr6n Vi6t phuong trinh h6a hgc dC thUc hien
r,1rir
citc cdch chuy6n h6a d6
Ciu 2.(a difun): C6 drrng dlch kh6ng md.u, su6t ld: frJOr; Hlf, eu )z;
- 4-' f-' ' L- -J)
NaHSOa; NaCl dugc chfia ri6ng bi6t trong 5 binh Xr, Xz, Xr, &, X5 Ket qui thi
nghiQrn cho bit5t dung dich X1 t4o ktit tua vdi dung dich X2 Khi cho dung diclr X1 vio clung dich X3 c6 bay ra; dung dich X2t1o k6t tua v6i
dung dich tlong X4 , ,A
1 Nhfrng ciip chAt nAo c6 th6 phAn frng duoc voi nhau? Vi6t plu-r'r:r:ig trir:h h6a hgc n€u
c6 phin fng.
2.Dqavdo k6t qu6 thi nghidm bdi cho 14p lu4n d6 x6c dinh c6c chAt co m5i Uinn
Cdu (6 di6m): C6 hdn hqp A 96*' BaCOrt Al; Cu
Chi dugc dilng dung dich HCl, dung dich Ba(OH)2, dung cu c6n duoc ch6t r6n, ddn
I i t.^ '_ r r
c6n, 6ng nghiQm, giAy lgc, binh c5c loai Trinh bdy c6ch ldm, c6ch tinh c16 x6c ciinh
thanh phAn phAn trdm vd kh6i luo ng cira m5i ch6t A bing ba c6ch kh6c
Cf,u (5 diOm): Chia 16,4 (g) h5n hop b6t X g6m Fe vd Al thenh hai phAn bing PhAn I cho t6c dung hodLn todn vdi dung dich HCI du thu dugc 7,84Iit khf H2 (dktc)
PhAn II cho vdo dung dich CuSO+ 0,66M Sau khi c6c phAn irng k6t thric thu dugc
dung dich A vd22,24 (g) chat ran -,.t , r
1 Viet c6c phucrng trinh h6a hgc r
2.'Tirthkh6i luo ng m6i chAt h6n
3 Tinh Cy cua dung dich A o.L
Cho H: 1; O: 16; Al: 27;Cl:35,5; Fe: 56; Cu 64;C: l2;Ba:137
u6t
tro.px [t.- L,V.: N .: gq