An aqueous solution of perchloric acid is standardized by titration with a 0.191 M solution of barium hydroxide. If 13.8 mL of base are required to neutralize 17.0 mL of the acid, what is the molarity of the perchloric acid solution?

Molarity of solution is 0.311 M

Explanation:

Neutralization reaction:

According to balanced reaction, 1 mol of neutralizes 2 moles of

Number of moles of in 13.8 mL of 0.191 M solution = =

Let's assume molarity of solution is C (M) then-

Number of moles of in 17.0 mL of C (M) solution = =

Hence,

         or,

So, molarity of solution is 0.311 M

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