Question

The equation for the pH of a substance ls pH=-log[H^ + ] where H+ is the concentration of hydrogen ions. What is the approximate pH of a solution whose hydrogen ion concentration is 2 * 10 ^ - 9


a. 1.0
b. 2.9
c. 8.7
d. 9.3

Answer 1

Answer:

C

Step-by-step explanation:

Just put the formula into the calculator with

H+ = 2×10^-9.

pH = - Log(2×10^-9)

pH = 8.70

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Answer 2

I think that the answer is c but I’m not sure