3 years ago

Hey, I’ll give brainliest. Just please help.

Chemistry

1 answer:

Andre45 [30]3 years ago

8 0

Answer:

Explanation:

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A 0.187 M weak acid solution has a pH of 3.99. Find Ka for the acid. Express your answer using two significant figures.

Anna35 [415]

Answer:

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Explanation:

Step 1: Given data

Concentration of the weak acid (Ca): 0.187 M

pH of the solution: 3.99

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pH = -log [H⁺]

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