An aqueous solution of hydroiodic acid is standardized by titration with a 0.138 M solution of potassium hydroxide. If 10.6 mL of base are required to neutralize 10.4 mL of the acid, what is the molarity of the hydroiodic acid solution?

The molarity of hydroiodic acid solution is 0.141 M

Explanation:

To calculate the concentration of acid, we use the equation given by neutralization reaction:

where,

are the n-factor, molarity and volume of acid which is HI

are the n-factor, molarity and volume of base which is KOH.

We are given:

Putting values in above equation, we get:

Hence, the molarity of hydroiodic acid solution is 0.141 M

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