Bi tp chng s in li trong thi H

Bi tp chng s in li trong thi H

Cu 1. (H - KB 2009) Cho cc phn ng ha hc sau:

(1) (NH4)2SO4 + BaCl2 (2) CuSO4 + Ba(NO3)2

(3) Na2SO4 + BaCl2 (4) H2SO4 + BaSO3

(5) (NH4)2SO4 + Ba(OH)2 (6) Fe2(SO4)3 + Ba(NO3)2

Cc phn ng u c cng mt phng trnh ion rt gn l:

A. (1), (2), (3), (6). B. (1), (3), (5), (6). C. (2), (3), (4), (6). D. (3), (4), (5), (6).

Cu 2. (H - KB-2011) Cho dy cc cht sau: Al, NaHCO3, (NH4)2CO3, NH4Cl, Al2O3, Zn, K2CO3, K2SO4. C bao nhiu cht trong dy va tc dng c vi dung dch HCl, va tc dng c vi dung dch NaOH?

A. 3. B. 5. C. 4. D. 2.

Cu 3. (H - KA 2008) Cho cc cht: Al, Al2O3, Al2(SO4)3, Zn(OH)2, NaHS, K2SO3, (NH4)2CO3. S cht u phn ng c vi dung dch HCl, dung dch NaOH l

A. 4. B. 5. C. 7. D. 6.

Cu 4. (H - KA 2008) Trn ln V ml dung dch NaOH 0,01M vi V ml dung dch HCl 0,03 M c 2V ml dung dch Y. Dung dch Y c pH l

A. 4. B. 3. C. 2. D. 1.

Cu 5. (H - KB 2009) Cho dung dch X cha hn hp gm CH3COOH 0,1M v CH3COONa 0,1M. Bit 250C, Ka ca CH3COOH l 1,75.10-5 v b qua s phn li ca nc. Gi tr pH ca dung dch X 250C l

A. 1,00. B. 4,24. C. 2,88. D. 4,76.

Cu 6. (H - KB 2009) Trn 100 ml dung dch hn hp gm H2SO4 0,05M v HCl 0,1M vi 100 ml dung dch hn hp gm NaOH 0,2M v Ba(OH)2 0,1M, thu c dung dch X. Dung dch X c pH l

A. 13,0. B. 1,2. C. 1,0. D. 12,8.

Cu 7. (H - KB 2007) Trn 100 ml dung dch (gm Ba(OH)2 0,1M v NaOH 0,1M) vi 400 ml dung dch (gm H2SO4 0,0375M v HCl 0,0125M), thu c dung dch X. Gi tr pH ca dung dch X l

A. 7. B. 2. C. 1. D. 6.

Cu 8. (H-KA2011) Cho dy cc cht: NaOH, Sn(OH)2, Pb(OH)2, Al(OH)3, Cr(OH)3. S cht trong dy c tnh cht lng tnh l

A. 1. B. 2. C. 4. D. 3.

Cu 9. (H - KA 2011) Dung dch X gm CH3COOH 1M v HCl 0,001M. Gi tr pH ca dung dch X l? (Ka = 1, 75.10-5 )

A. 2,55. B. 1,77. C. 2,33. D. 2,43.

Cu 10. (H - KA 2010) Dung dch X c cha: 0,07 mol Na+; 0,02 mol SO42- v x mol OH . Dung dch Y c cha ClO , NO3- v y mol H+; tng s mol ClO v NO3- l 0,04. Trn X v Y c 100 ml dung dch Z. Dung dch Z c pH (b qua s in li ca H2O) l

A. 1. B. 12. C. 13. D. 2Cu 11. (H - KA 2008) Cho cc cht: Al, Al2O3, Al2(SO4)3, Zn(OH)2, NaHS, K2SO3, (NH4)2CO3. S cht u phn ng c vi dung dch HCl, dung dch NaOH l

A. 4. B. 5. C. 7. D. 6.

Cu 12. (H - KA 2008) Trn ln V ml dung dch NaOH 0,01M vi V ml dung dch HCl 0,03 M c 2V ml dung dch Y. Dung dch Y c pH l

A. 4. B. 3. C. 2. D. 1.

Cu 13. (H - KB 2008) Trn 100 ml dung dch c pH = 1 gm HCl v HNO3 vi 100 ml dung dch NaOH nng a (mol/l) thu c 200 ml dung dch c pH = 12. Gi tr ca a l (bit trong mi dung dch [H+][OH-] = 10-14)

A. 0,30. B. 0,15. C. 0,12. D. 0,03

Cu 14. (H - KA 2008) Cho dy cc cht: Ca(HCO3)2, NH4Cl, (NH4)2CO3, ZnSO4, Al(OH)3, Zn(OH)2. S cht trong dy c tnh cht lng tnh l

A. 5. B. 4. C. 3. D. 2.