問題詳情

43. Consider a buffered solution containing CH3NH:Cl and CH3NH2. Which of the following
statements concerning this solution are TRUE?



(A) A solution consisting of 0.10 M CH3NH3CI and 0.10 M CH3NH2 would have a higher
buffering capacity than one containing 1.0 M CH3NH3CI and 1.0 M CH3NH2.

(B) If [CH3NH2] ＞ [CH3NH3⁺], then the pH is larger than the pKa value of CH3NH3⁺ .

(C) Adding more [CH3NH3Cl] to the initial buffer solution will increase the pH.

(D) If [CH3NH2] ＞ [CH3NH3⁺], then pH ＞ 10.50.

(E) IF [CH3NH2] = [CH3NH3⁺], then pH = 3.30.

參考答案

答案：[無官方正解]
難度：計算中-1
書單：沒有書單，新增