Formic acid ka 1.7 x 10-4 and sodium formate were used to, Ask an Expert

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Formic acid (Ka= 1.7 x 10^-4) and sodium formate were used to prepare a buffer solution of pH 4.31. The concentration of the undissociated formic acid in this buffer solution was 0.80 mol/L. Under these conditions, the molar concentration of formate ion was this: a) 1.4 mol/L b) 2.78 mol/L c)2.8 mol/L d) 3 mol/L

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