Which acid would you choose to combine with its sodium salt to make a solution buffered at
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Which acid would you choose to combine with its sodium salt to make a solution buffered at pH 4.25? For the best choice, calculate the ratio of the conjugate base to the acid required to attain the desired pH.
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chlorous acid (HClO₂) pK₁ = 1.95 formic acid (HCHO₂) nitrous acid (HNO₂) pKa 3.34 hypochlorous acid (HCIO) = PK₁ = 3.74 pKa = 7.54
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The best choice is formic acid because its pka lies closest ...View the full answer
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