将30毫升0.5mol/l的naoh溶液中加水稀释到500毫升,稀释后溶液中naoh的物质的量浓

问题描述:

将30毫升0.5mol/l的naoh溶液中加水稀释到500毫升,稀释后溶液中naoh的物质的量浓

用物质守恒:V1C1=V2C2
30×0.5=500×C
C=0.03mol/L