A.溶质增加了3.5g | B.有1mol水被电解 |
C.在阳极生成2gH2 | D.在阳极生成16gO2 |
A.阴极增重1.72 g | B.所得溶液 pH<1 |
C.阴极增重0.64 g | D.所得溶液pH>1 |
A. 6.72L | B. 8.96L | C.11.2L | D.5.6L |
A.pH=n | B.pH=-lg n | C.pH=14-lgn | D.pH=lgn+14 |
A.0.025 mol | B.0.05 mol | C.0.1 mol | D.0.2 mol |
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