Problem: Find the pH of a 0.276 M NaC2H3O2 solution. (The Ka of acetic acid, HC2H3O2, is 1.8 x 10-5.)        

🤓 Based on our data, we think this question is relevant for Professor McCrea-Hendrick's class at UCD.

FREE Expert Solution

We are being asked to calculate the pH of a 0.276 NaC2H3O2 solution given that the Ka of acetic acid (HC2H3O2) is 1.8 x 10-5.


We're going to calculate for the pH using the following steps:

Step 1: Write the equilibrium reaction.
Step 2: Construct an ICE chart for the equilibrium reaction.
Step 3: Calculate for the equilibrium concentration of OH-.
Step 4: Calculate for pOH.
Step 5: Calculate for pH.


Step 1: Write the equilibrium reaction.

NaC2H3O2 is a salt and it will break up in the solution:

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Problem Details

Find the pH of a 0.276 M NaC2H3O2 solution. (The Ka of acetic acid, HC2H3O2, is 1.8 x 10-5.)        

Frequently Asked Questions

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Weak Acids concept. If you need more Weak Acids practice, you can also practice Weak Acids practice problems.

What professor is this problem relevant for?

Based on our data, we think this problem is relevant for Professor McCrea-Hendrick's class at UCD.