Question

Calculate pH of 0.1 M NaA, given Kₐ for HA is 10⁻¹².
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Answer 1

Explanation:

In aqueous solution, it has a pKa value of 4.76. Its conjugate base is acetate (CH3COO−). A 1.0 M solution has a pH of 2.4, indicating that merely 0.4% of the acetic acid molecules are dissociated. The required pH of 0.1 M solution of acetic acid is 2.88.

Answer 2

Answer:In aqueous solution, it has a pKa value of 4.76. Its conjugate base is acetate (CH3COO−). A 1.0 M solution has a pH of 2.4, indicating that merely 0.4% of the acetic acid molecules are dissociated. The required pH of 0.1 M solution of acetic acid is 2.88.

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