Problem: Calculate the pH of a 0.300 M solution of formic acid, for which the Ka value is 1.80 x 10-4.a. 4.21b. 2.13c. 5.77d. 1.82e. 1.31

FREE Expert Solution

Establish the Ka expression of the dissolution of formic acid (CHO2H) and determine the pH using an ICE chart

We will solve this problem through these steps:

Step 1: Write an equation for the dissociation of CHO2H 

Step 2: Write an expression for the Ka.

Step 3: Set up an ICE table to calculate the H3O+ ion concentration.

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Problem Details

Calculate the pH of a 0.300 M solution of formic acid, for which the Ka value is 1.80 x 10-4.

a. 4.21

b. 2.13

c. 5.77

d. 1.82

e. 1.31