A 60.00-mL sample of a weak acid is titrated with 0.0361 M NaOH. At the endpoint, it is found that 38.23 mL of titrant was used. What was the concentration of the weak acid?

The concentration of weak acid is 0.0230 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 weak acid

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

We are given:

Putting values in above equation, we get:

Hence, the concentration of weak acid is 0.0230 M

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