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The ionization constant of formic acid i...

The ionization constant of formic acid is `1.8xx10^(-4)`. Around what pH will its mixture with sodium formed give buffer solution of higher capacity. Calculate the ratio of sodium formate and formic acid in a buffer of `pH 4.25`.

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To solve the problem step by step, we will follow the process of calculating the pKa of formic acid, determining the pH for maximum buffer capacity, and then calculating the ratio of sodium formate to formic acid at a specified pH. ### Step 1: Calculate pKa of Formic Acid The ionization constant (Ka) of formic acid is given as: \[ K_a = 1.8 \times 10^{-4} \] To find the pKa, we use the formula: \[ pK_a = -\log(K_a) \] ...
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