Quick questions on Weak acid and base equilibria - AP Chemistry Unit 8

2short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.

What is q1?

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A weak acid has

K_a = 4.0 \times 10^{-7}

. Using the approximation, calculate

[\text{H}_3\text{O}^+]

in a

0.10

M solution. [2 points]

What is q2?

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The

K_a

of an acid is

1.0 \times 10^{-4}

. Calculate the

K_b

of its conjugate base. [2 points]

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