下列溶液中有关物质的量浓度关系正确的是
A.0.2 mol/L 的NaHCO3溶液:![]() ![]() ![]() |
B.pH=2的CH3COOH溶液与pH=12的NaOH溶液等体积混合:![]() ![]() ![]() ![]() |
C.0.2 mol/L CH3COOH溶液和0.2 mol/L CH3COONa溶液等体积混合:![]() ![]() ![]() |
D.0.1 mol/L Na2CO3溶液与0.1 mol/L NaHCO3溶液等体积混合: |
(CO32-)+2
(OH-)=
(HCO3_)+3
(H2CO3)+2
(H+)
下列溶液中有关物质的量浓度关系正确的是
A.0.2 mol/L 的NaHCO3溶液:![]() ![]() ![]() |
B.pH=2的CH3COOH溶液与pH=12的NaOH溶液等体积混合:![]() ![]() ![]() ![]() |
C.0.2 mol/L CH3COOH溶液和0.2 mol/L CH3COONa溶液等体积混合:![]() ![]() ![]() |
D.0.1 mol/L Na2CO3溶液与0.1 mol/L NaHCO3溶液等体积混合: |
(CO32-)+2
(OH-)=
(HCO3_)+3
(H2CO3)+2
(H+)