50ml滴定管的读数可准确至( ),为使滴定分析的准确可达0.1%,故滴定时消耗溶液体积控制在( )
问题描述:
50ml滴定管的读数可准确至( ),为使滴定分析的准确可达0.1%,故滴定时消耗溶液体积控制在( )
答
±0.02mL, 25~35mL
答
±0.01mL,20~30mL