Problem: A weak acid has a pKa of 5.35. What is the hydronium ion concentration in a 0.10 M solution of this weak acid?1. 5.4 x 10-4 M2. 6.3 x 10-6 M3. 3.5 x 10-5 M4. 2.3 x 10-6 M5. 4.5 x 10-6 M6. 6.7 x 10-4 M

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Problem Details

A weak acid has a pKa of 5.35. What is the hydronium ion concentration in a 0.10 M solution of this weak acid?

1. 5.4 x 10-4 M

2. 6.3 x 10-6 M

3. 3.5 x 10-5 M

4. 2.3 x 10-6 M

5. 4.5 x 10-6 M

6. 6.7 x 10-4 M

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Based on our data, we think this problem is relevant for Professor Grant's class at HUNTER.