Molarity of KHP ___ moles/L with a KOH titrant
To calculate the molarity of potassium hydrogen phthalate (KHP), you need the volume and concentration of the potassium hydroxide (KOH) titrant used in the titration.
The balanced equation for the reaction between KHP and KOH is:
KHP + KOH → K2HPO4 + H2O
In this reaction, the mole ratio between KHP and KOH is 1:1. This means that 1 mole of KHP reacts with 1 mole of KOH.
Here are the steps to calculate the molarity of KHP:
1. Measure the volume of KOH titrant used during the titration (let's call it V_KOH). This should be in liters (L).
2. Determine the concentration of the KOH titrant (let's call it C_KOH). This should be in moles per liter (mol/L) or molarity.
3. Calculate the number of moles of KOH used in the titration by multiplying the volume by the concentration:
Moles of KOH = V_KOH * C_KOH
4. Since the reaction is 1:1, the number of moles of KHP used in the titration is also equal to the number of moles of KOH:
Moles of KHP = Moles of KOH
5. Finally, calculate the molarity of KHP by dividing the moles of KHP by the volume of KHP used in the titration (V_KHP) measured in liters:
Molarity of KHP = Moles of KHP / V_KHP
Note: The volume of KHP used in the titration (V_KHP) should be measured in the same units as V_KOH (usually in milliliters, mL).
Using these steps, you can determine the molarity of KHP by plugging in the values for V_KOH, C_KOH, and V_KHP into the formula above.