The pH of your swimming pool is found to be 6.89. What is the concentration of H+ ions in the pool?

A. 7.76 × 106 M
B. 0.84 M
C. 1.29 × 10-7 M
D. 1.29 × 107 M

3 answers

pH = -log(H^+)
Substitute and solve for H^+
The answer is 1.29 x 10^-7 M
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