酸 | 电离方程式 | 电离平衡常数K |
CH3COOH | CH3COOH CH3COO-+H+ | 1.76×10-5 |
H2CO3 | H2CO3 H++HCO3- HCO3- H++CO32- | K1=4.4×10-7 K2=4.7×10-11 |
H2S | H2S H++HS- HS- H++S2- | K1=1.3×10-7 K2=7.1×10-15 |
H3PO4 | H3PO4 H++H2PO4- H2PO4- H++HPO42- HPO42- H++PO43- | K1=7.1×10-3 K2=6.3×10-8 K3=4.20×10-13 |
回答下列问题: