A 30.0 mL sample of 0.0446 M citric acid solution was titrated with 20.7 mL of...

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Question

A 30.0 mL sample of 0.0446 M citric acid solution was titrated with 20.7 mL of NaOH solution. Calculate the molarity of the NaOH solution

Answer 1

Answer #1

citric acid is triprotic acid = H3A

H3A + 3NaOH -----------------------> Na3A + 3H2O

M1V1/n1 = M2 V2 / n2

0.0446 x 30.0 / 1 = M2 x 20.7 / 3

M2 = 0.194 M

molarity of NaOH = 0.194 M

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Answer 2

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