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A student is asked to standardize a solution of potassium hydroxide. He weighs out 0.965 g potassium...

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Chemistry

A student is asked to standardize a solution ofpotassium hydroxide. He weighs out0.965 g potassium hydrogen phthalate(KHC8H4O4, treat this as amonoprotic acid).

It requires 25.9 mL of potassiumhydroxide to reach the endpoint.

A. What is the molarity of the potassiumhydroxide solution? _________M

This potassium hydroxide solution is then used totitrate an unknown solution of hydrochloricacid.

B. If 21.5 mL of thepotassium hydroxide solution is required toneutralize 27.7 mL of hydrochloricacid, what is the molarity of the hydrochloricacidsolution? ________M

Please explain :)

Answer & Explanation Solved by verified expert
3.8 Ratings (461 Votes)
first find out the no of moles potassium hydrogen phthalate moles of potassium hydrogen phthalate weight molar mass 0965 2042212 0004725 moles if you look at the balanced reaction    See Answer
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