What is the pH of a solution with [H+] = 1.25 mc015-1.jpg 10–10 M? Use mc015-2.jpg. –10.1 –9.90 7.90 9.90
2 answers:
We use the relationship:
pH = -log[H⁺]
pH = -log(1.25 x 10⁻¹⁰)
pH = 9.9
Answer : Option D) 9.90
Explanation : The pH of the solution can be determined by the formula as
pH = - log ![[H^{+}]](https://tex.z-dn.net/?f=%20%5BH%5E%7B%2B%7D%5D%20)
Here, the concentration of
= 
So, substituting this value in above formula;
we get pH = -log ![[ 1.25 X 10^{-10} M]](https://tex.z-dn.net/?f=%5B%201.25%20X%2010%5E%7B-10%7D%20M%5D%20)
Therefore, pH = 9.90.
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