实验中需要配制1mol/L的Na2CO3溶液950ml,配制时应选用容量瓶的规格和称取的Na2CO3 .10H2O的质量分别为
A.950ml,100.7g | B.1000ml,286 g | C.500ml,286g | D.1000ml,212g |
实验中需要配制1mol/L的Na2CO3溶液950ml,配制时应选用容量瓶的规格和称取的Na2CO3 .10H2O的质量分别为
A.950ml,100.7g | B.1000ml,286 g | C.500ml,286g | D.1000ml,212g |