A standard solution of 0.442 M NaOH was used to determine the concentration of a hydrochloric acid solution. If 43.50 mL of NaOH is needed to neutralize 65.00 mL of the acid, what is the molar concentration of the acid in the original solution

Answer : The molar concentration of the acid in the original solution is, 0.296 M

Explanation :

Formula used :

where,

are the initial molarity and volume of HCl.

are the final molarity and volume of NaOH.

We are given:

Now put all the given values in above equation, we get:

Hence, the molar concentration of the acid in the original solution is, 0.296 M

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