本题目来源于试卷: Mechanisms of Chemical Change F.1 Proton Transfer Reactions，类别为 IB化学
[单选题]
Which of the following solutions, wheno3tm6 p +0lvfu xiy,t1uhe4x , mixed y;/ o eozkp2;g3xz/n5jc 9kpnst* yq4with equal volumes at equal concentrations, form a buffer sg9;s*jztn32p o5cqky e pnzk y/x4o;/ olution?
A. $HCN$ and $NaCN$
B. $HCN$ and $NH_3$
C. $H_3PO_4$ and $NH_3$
D. $H_3PO_4$ and NaCN
参考答案: A
本题详细解析:
An acidic buffer soluw9bz2 jhul l58tion contains a weak acid and the salt of its conjugate basuhlw85z bj l92e.
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