how do i calculate the NaOH molarity from a titration of KHP and NaOH after preparing KHP to standardise NaOH. KHP mass was 2.0378g dissoveld in distilled water to fill up a 100ml volumetric flask and only 10ml of this solution was used to in titration

mols KHP = grams/molar mass

You took 10mL from 100 so you took 1/10 of those mols to titrate.
Then mols NaOH = same as mols in the titrated KHP.
M NaOH = mols NaoH/L NaOH.

To calculate the molarity (M) of NaOH, you need to know the balanced equation between NaOH and KHP (potassium hydrogen phthalate). Assume the equation is:

2 NaOH + KHP --> Na2KHP + H2O

First, you need to determine the number of moles of KHP used in the titration. To do this, you need to know the molar mass of KHP, which you can find on the periodic table. Let's assume the molar mass of KHP is 204.23 g/mol.

1. Calculate the moles of KHP:
Moles of KHP = (mass of KHP used) / (molar mass of KHP)
= (2.0378 g) / (204.23 g/mol)

2. Next, you need to determine the number of moles of NaOH that reacted in the titration. According to the balanced equation, the mole ratio between NaOH and KHP is 2:1.
Moles of NaOH = (moles of KHP) / 2

3. Now that you know the number of moles of NaOH in the 10 mL of solution used, you can calculate the molarity of NaOH.
Molarity of NaOH = (moles of NaOH) / (volume of NaOH solution in liters)
= (moles of NaOH) / (0.01 L) (since 10 mL = 0.01 L)

Perform the calculations to find the moles of KHP, moles of NaOH, and finally, the molarity of NaOH.