Problem: What is the pH of 0.72 M ethylammonium chloride, C2H5NH3Cl? The Kb of ethylamine, C2H5NH2, is 4.3 x 10-4.a. 3.22b. 4.71c. 3.81d. 4.57e. 5.40

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FREE Expert Solution

Establish the Ka expression of the dissolution of ethylammonium chloride (C2H5NH3Cl) 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 C2H5NH3Cl

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

What is the pH of 0.72 M ethylammonium chloride, C2H5NH3Cl? The Kb of ethylamine, C2H5NH2, is 4.3 x 10-4.

a. 3.22

b. 4.71

c. 3.81

d. 4.57

e. 5.40