Interpretation:
The amount of KHP (in grams) required to neutralize the given NaOH solution is to be calculated.
Concept Introduction:
Acid–base titrations are useful in determining the concentration of an unknown acid or a base.
The concentration of unknown solution can be determined by titrating it with a standard solution of a known concentration.
If volumes of standard and unknown solutions are known, the concentration of unknown solution can be estimated with the help of concentration of standard solution.
The solution of a strong base like NaOH needs to be standardized as its concentration might become unstable over time. It can be standardized using KHP, which is available in a highly pure form.
So, number of moles can be calculated as
The moles of a substance are expressed as
So, the mass of a substance is given by the expression
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