Question

What is the pH of a solution with [н'] = 2.3 х 10-б?

ОА. -0.36
ОВ. 6.00
Ос. 5.64
—5.64

Answer 1

C. 5.64

Explanation:

Use the definition of pH.

pH = -log([H⁺]) = -log(2.3×10⁻⁶) ≈ -(-5.638) ≈ 5.64