Sorbic acid hc6h7o2 or hsorb mm 11212 gmol is a weak, Ask an Expert

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Sorbic acid, HC6H7O2, or HSORB, MM = 112.12 g/mol, is a weak monoprotic acid with Ka = 1.700 x 10-5. Its salt (potassium sorbate, or KSORB) is added to cheese to inhibit the formation of mold. What is the pH of a solution containing 4.555 g of potassium sorbate, KC6H7O2 , KSORB, MM = 150.21 g/mol, in 0.750L of solution?

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