Question 4 Part b of previous problem: A 0.150 M solution of a weak acid has a pH of 2.65. What is the percent ionization of the acid? Question 5 1 A 0.02 M solution of butanoic acid contains 1.51 x 102 M H3O*. What is the Ka of butanoic acid

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Chapter1: Chemical Foundations
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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**Question 4**

Part b of previous problem: A 0.150 M solution of a weak acid has a pH of 2.65.

What is the percent ionization of the acid?

[Answer Box]

---

**Question 5**

A 0.02 M solution of butanoic acid contains 1.51 x 10^-2 M H₃O⁺. What is the Ka of butanoic acid?

[Answer Box]
Transcribed Image Text:**Question 4** Part b of previous problem: A 0.150 M solution of a weak acid has a pH of 2.65. What is the percent ionization of the acid? [Answer Box] --- **Question 5** A 0.02 M solution of butanoic acid contains 1.51 x 10^-2 M H₃O⁺. What is the Ka of butanoic acid? [Answer Box]
Expert Solution
Step 1

Answer:-

This question involves the calculation of percent ionization of a weak acid which is given using the simple formula.

% ionization= concentration of H3O+/concentration of acid x 100

The value of Ka is calculated using its expression and value of each concentration term.

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