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  • Determining pH
  • What is the change in H3O+ concentration from a pH of 5 t...
Multiple choice

What is the change in H3O+ concentration from a pH of 5 to a pH of 3?

  1. 10

  2. 100

  3. 1000

  4. 10,000

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The pH scale is logarithmic. A change of 2 units (5 minus 3) represents a factor of 10^2, which is 100.

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