用基准Na2CO3[M(Na2CO3)=106g/mol]标定0.10mol/L H_爱下问搜题

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问题单项选择题

用基准Na₂CO₃[M(Na₂CO₃)=106g/mol]标定0.10mol/L HCl标准溶液，若消耗HCl溶液为30mL，则应称取Na₂CO₃的质量为( )。

A．0.16g

B．0.08g

C．0.32g

D．0.24g

答案

参考答案：A

选择题

Father is ill. He wants his doctor to give him _____ about his heart trouble.

A．an advice

B．some advice

C．some advices

D．advices

填空题

江文也的成名作（）是一首标题性的幻想音诗.