Cho kim lopi natri du vdo dung dfch B thu duoc dung dich c vd khi D.. NOu lAy cung m6t kh6i lugng kim lopi trdn cho t5c dqng htit vdi dung dich HCI thi kim lopi ndo cho nhi6u khf hiclro
Trang 1on xHAo sAr cnAr LTIqNG Hec srNH Gror
\4U_HQq2qlx - 2013
Bt rnr cniivn rHrlc Mdn thi: H6a hgc l6p 8
Thdi gian ldm bdi: 120 phfit
Ciu 1: (3 diCm) Cdn bdng c6c ph6n img h6a hoc sau:
a) Alz(SO+): + KOH
b) Fe*O, + CO
c) CnHzn-z + Oz
d) Fe3Oa + HCI
e ) M + H C I
0 Fe*O, + HzSg+
Cdu 2: (a di6m) oOt ch6y ph6t pho trong kh6ng khi thu dugc ch6t rln A, hda tan A vdo nu6c du thu dugc dung dfch B Cho kim lopi natri du vdo dung dfch B thu duoc dung dich c vd khi D DAn khf D di qua h5n hgp bQt E g6m Al2o3, Fe3oa, cuo nung n6ng thu
dugc h6n hqp kim loai F ViCt c6c phucrng trinh h6a hgc xity ravi cho bi6t A, B, C, D, F
ld nhfrng chdt gi?
Cffu 3: (a di6m) Cho cdc kim lopi: K, Al, Fe vd dung dich HCI:
r t i r A
a NOu lAy cung m6t kh6i lugng kim lopi trdn cho t5c dqng htit vdi dung dich HCI thi kim lopi ndo cho nhi6u khf hiclro ntrdtZ
b N6u thu dugc cirng mQt thd tfch khi hidro thi kh6i lugng kim loai ndo dtng itnhSt? Cffu 4: (5 diCm) Cho 1 V,g2lithSn hqp khf X gdm hidro vd butan (CaH16) o diAu kiOn ti6u
, : , " , , i ,
chudn co t1i kh6i so v6i oxi le 0,5 DOt h6n hqp X voi 64 gam khi oxi Sau khi phAn fmg xtry rahohn toin thu dugc hdn hqp khf Y
- , ^
a Viet phucrng trinh hoa hgc xhy ra
b Tinh thdnh phAn phAn trdm th6 tich m6i t<tri trong hdn hcr,p Y
Cdu 5: (a di6m) H5n hqp khi A g6tn u mol SOz vd 5a mol kh6ng khf Nung n6ng h6n hqp A v6i V2O5 xirc t6c thu dugc h5n hqp khf B Bi6t rdng ti kh6i hoi cria A so vdi B bing 0,93 Hdy tinh hi6u su6t phin img tr6n v6i gi6 thit5t kh6ng khi c6 chira 80% th€ tich
ld N2 vit20%o th6 tfch ia Or
PHONG GIAO DUC VA EAO
TAO THANH PHO VINH
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