问题
选择题
将30mL 0.5 mol/L NaOH溶液加水稀释到500 mL,稀释后溶液的浓度为( )
A.0.1 mol/L
B.0.3 mol/L
C.0.05 mol/L
D.0.03 mol/L
答案
答案:D
将30mL 0.5 mol/L NaOH溶液加水稀释到500 mL,变成原来的3/50
将30mL 0.5 mol/L NaOH溶液加水稀释到500 mL,稀释后溶液的浓度为( )
A.0.1 mol/L
B.0.3 mol/L
C.0.05 mol/L
D.0.03 mol/L
答案:D
将30mL 0.5 mol/L NaOH溶液加水稀释到500 mL,变成原来的3/50