问题:
实验中需2mol/L的Na 2CO 3溶液950mL,配制时应选用的容量瓶的规格和称取Na 2CO 3的质量分别是
A.1000mL,212g
B.950mL,543.4g
C.950mL,572g
D.500mL,286g
实验中需2mol/L的Na 2CO 3溶液950mL,配制时应选用的容量瓶的规格和称取Na 2CO 3的质量分别是
A.1000mL,212g | B.950mL,543.4g | C.950mL,572g | D.500mL,286g |
参考答案: