<u>Answer:</u> The molarity of NaOH solution is 0.1196 M
<u>Explanation:</u>
To calculate the number of moles, we use the equation:
Given mass of KHP = 0.397 g
Molar mass of KHP = 204.22 g/mol
Putting values in above equation, we get:
The chemical reaction for the reaction of KHP and NaOH follows
By Stoichiometry of the reaction:
1 mole of KHP reacts with 1 mole of NaOH.
So, 0.00194 moles of KHP will react with = of NaOH.
To calculate the molarity of NaOH, we use the equation:
We are given:
Moles of NaOH = 0.00194 moles
Volume of solution = 16.22 mL = 0.01622 L (Conversion factor: 1 L = 1000 mL)
Putting values in above equation, we get:
Hence, the molarity of NaOH solution is 0.1196 M