Pottasium hydrogen phthalate (KHC8H4O4 = KHP) is primary standard used to determ

Question

Pottasium hydrogen phthalate (KHC8H4O4 = KHP) is primary standard used to determine the molarity of bases such as NaOH. The equation for this reaction is:

KHC8H4O4 (ag) + NaOH (ag) >> Na+(ag) + K+(ag) + (C8H4O4)2-(ag) + H2O (l)

QUESTION (1) Write the net ionic equation for this reaction.

QUESTION (2) When 0.198 g of KHP is titrated with NaOH, it requires 27.80 mL of NaOH to reach the endpoint of the reaction. Calculate the molarity of the NaOH solution.

QUESTION (3) The standardized solution of NaOH (part A) is used to titrate a solution HCL. Write the balanced equation for this reaction. calculate the molarity of the HCL solution if it requires 13.50-mL of NaOH to titrate 15.0 mL HCL soution endpoint.

Part A - Standardization of a solution of sodium hydroxide using a primary
standard.
Needed:

Explanation / Answer

KHP = monoprotic weak acid 0.02L x 0.1M = 0.002moles OH- we need 0.002moles KHP 0.002moles KHP x molar mass KHP = mass KHP

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