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What is the approximate pH of a 1.0 x 10^-8 M HCl solution?
A8.00
B6.98
C7.00
D6.00
Answer & Solution
Correct answer: B. 6.98
Water's own 10^-7 M of H+ dominates, giving total [H+] near 1.05 x 10^-7 M and pH about 6.98.
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