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Acids and BasesMCQ

What is the [H+] in a solution in which [HA] = 4.0×10^-2 and [A-] = 2.0×10^-2. [Ka = 3.0×10^-6]Acids and Bases Chemistry Question

Question

What is the [H+] in a solution in which [HA] = 4.0×10^-2 and [A-] = 2.0×10^-2. [Ka = 3.0×10^-6]

A.

1.5×10^-6

B.

3.0×10^-6

C.

6.0×10^-6

✓ Correct
D.

3.8×10^-3

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