Resultados de los problemas del tema 8

1. TEMA 8.-
4. a) pH = 3; b) pH = 13,88
5. [H3O+
] = 2,5·10-5
M
6. pOH = 0,44
7. [HCl] = 0,7615 M
8. a) pH = 2,09; b) pH = 0,40; c) pH = 2,20
9. [CH3COOH]eq = 0,018129 M; [CH3COO-
]eq = 5,71·10-4
M; [H3O+
]eq = 5,71·10-4
M
10. [HCOOH]o = 2,326·10-3
M
11. a = 0,038 (3,8%)
12. a = 3·10-3
(0,3%)
13. a) x = 1,9·10-3
M; pH = 11,28; b) pH = 13,3
14. a) x = 1,34·10-3
M; pH = 11,13; b) x = 9,22·10-6
M; pH = 8,96
15. Kb = 6,97·10-7
16. Co = 0,156 M
17. x = 1,2·10-3
M; a = 1,5%
20. Kb = 5,56·10-10
; x = 1,41·10-5
M; pOH = 4,85; pH = 9,15
21. x = 1,63·10-5
M; pH = 4,79