A.等于0.3mol•L-1氨水溶液的pH |
B.等于0.2mol•L-1氨水溶液的pH |
C.大于0.3mol•L-1氨水溶液的pH |
D.小于0.2mol•L-1氨水溶液的pH |
0.3mol |
1.5L |
A.95℃时纯水的pH<7,说明加热可导致水呈酸性 |
B.将pH=3的CH3COOH溶液加水稀释10倍后pH=4 |
C.0.2mol/L的盐酸1L加水到2L后,溶液的pH=1 |
D.NaHCO3溶液水解反应的方程式:HCO3-+H2O=H3O++CO32- |
A.(c)(a)(b)(d)(f)(e)(g) | B.(c)(a)(d)(f)(b)(e)(g) | C.(g)(e)(b)(f)(d)(a)(c) | D.(c)(a)(d)(f)(e)(b)(g) |
A.大于7 | B.小于7 | C.等于7 | D.无法判断 |
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