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Question- Which of the following acids, (listed with Ka values), and their conjugate base will form a buffer with a pH of 2.34?
HF, Ka = 3.5 x 10 -4
HClO, Ka = 2.9 x 10 -8
C6H5COOH, Ka = 6.5 x 10 -5
HCN, Ka = 4.9 x 10 -10
HClO2, Ka = 1.1 x 10 -2
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