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 solutc7 ( jcrzmz/bx6 pv6:pions, when mixed with equal volumes at equal ;-+jeowb6mdacsbl5ma : *:mz concentrations,aad:-ec mm6+5 *;molbj zsb w: form a buffer solution?
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 solution contains a weak acid and tfdycgbrr(r4mef3 ) g462 ltd:he salt of its conjugate base.6ry2dl (tgd fcm4g:r br3e)4f
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