下列叙述正确的是(A) 某醋酸溶液的PH＝ a，将此溶液稀释1倍后，溶液的PH＝ b，则a>b(B) 在滴有酚酞溶液的氨水中，加入NH4Cl的溶液恰好无色，则此时溶液的PH< 7(C)

問題詳情

9.下列叙述正确的是
(A) 某醋酸溶液的PH＝ a，将此溶液稀释1倍后，溶液的PH＝ b，则a>b
(B) 在滴有酚酞溶液的氨水中，加入NH4Cl的溶液恰好无色，则此时溶液的PH< 7
(C) 1.0×10-3mol/L盐酸的PH=3.0，1.0×10-8mol/L盐酸PH＝8.0
(D) 若1mL PH=1盐酸与100mL MaOH溶液混合后，溶液PH=7，则NaOH溶液的PH=11

參考答案

答案：D
難度：適中0.5
統計：A(0),B(0),C(0),D(0),E(0)

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