Benzoic acid, HC7H502, and its salts are used as food preservatives. Ka for benzoic acid is 6,3 X 1 0 -5 . A solution of sodium benzoate, NaC7H502, in water has a concentration of 0.015 mol.dm-3 . a) What is the equilibrium concentration of benzoic acid in the sodium benzoate solution? b) What is the pH of this solution?
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Benzoic acid, HC7H502, and its salts are used as food preservatives. Ka for benzoic acid is 6,3 X 1 0 -5 . A solution of sodium benzoate, NaC7H502, in water has a concentration of 0.015 mol.dm-3 .
a) What is the equilibrium concentration of benzoic acid in the sodium benzoate solution?
b) What is the pH of this solution?
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