挑战习题
1/5单选题
难度:

1.下列溶液中,跟200mL0.5mol/L的Na2SO4溶液所含的Na+物质的量浓度相同的是
A 200mL0.25mol/LNaCl溶液
B 200mL1mol/LNaCl溶液
C 100mL 0.5mol/LNaOH溶液
D 100mL1mol/LNa2CO3溶液
提示1:
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正确答案:Qg==
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