The pH of coffee is approximately 5.0.How many times greater is the [H₃O⁺] in coffee than in tap water having a pH of 8.0? A)0.62 B)1.6 C)30 D)1,000 E)1.0 × 10⁴

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Quizplus · Accepted Answer

The pH scale is logarithmic, so each unit change represents a tenfold change in [H3O+]. A pH difference of 3 (from 8 to 5) means the [H3O+] is 10^3 or 1,000 times greater in coffee than in tap water.

The PH of Coffee Is Approximately 5