After 15 min, 100 mL of Ca(NO3)2 (33.7 mmol, 0.5 M) and (NH4)2HPO4 (20mmol, 30M) solutions whose pH were adjusted to 11 were added dropwise to the obtained solution。
这是一篇文献中的一段话,本人不是很明白,他说的100ml是指的硝酸钙和磷酸氢二铵加起来一共是100ml吗?如果是这样,那么括号里的浓度好像不对啊?希望哪位达人帮忙解释一下。