化学 示例

热门问题
化学
求出摩尔数 How many mol of NaC_7H_5O_2 should be added to 150mL of a*0.15MHC_7H_5O_2 solution in order to obtain a buffer with aPH of 4.25 The ka for HC_7HO_2 is 6.3
我解不出这道题目。