31. If the pKa of HCHO2 is 3.74 and the pH of an HCHO2/NaCHO2 solution is3.89, which of the followin
問題詳情
31. If the pKa of HCHO2 is 3.74 and the pH of an HCHO2/NaCHO2 solution is3.89, which of the following is TRUE? (A) [HCHO2] ＜ [NaCHO2] (B) [HCHO2] = [NaCHO2] (C) [HCHO2] ＞ [NaCHO2] (D) [HCHO2] ＞＞ [NaCHO2]