将5mol/L的Mg(NO3)2溶液a mL稀释至b mL，稀释后溶液中NO3－的物质的量浓度是_刷题宝

题干

将5mol/L的Mg(NO₃)₂溶液a mL稀释至b mL，稀释后溶液中NO₃^－的物质的量浓度是

A：mol/L

B：mol/L

C：mol/L

D：mol/L

上一题下一题 0.0难度选择题更新时间:2019-12-05 03:38:07

答案(点此获取答案解析）

B

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