Question

Post-Lecture Homework Chapter 04

Problem 4.19

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Problem 4.19

Formic acid, HCOOH, is a weak electrolyte.

Part A

What solute particles are present in an aqueous solution of this compound?

Express your answer as a chemical formula. If there is more than one answer, enter each answer separated by a comma.

Ca(OH)2⇌Ca2++2OH−

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Part B

Write the chemical equation for the ionization of HCOOH.

Express your answer as a balanced chemical equation. Identify all of the phases in your answer.

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Answer 1

The dissociation of weak electrolyte is given by AB_(aq) A⁺_(aq) + B^-_(aq)

Since FORMIC ACID, HCOOH is weak electrolyte and there exists a equilibrium between the dissociate ions H⁺(aq) and HCOO^-(aq) and undissociated acid, HCCOH

The disscoiation weak acid, HCOOH is given by

                HCOOH(aq)   HCOO^-(aq) + H⁺(aq)

The solute particles are present in an aqueous solution of this compound HCOOH(aq), HCOO^-(aq) , H⁺(aq)