The best statement that describes the difference between a substance with a pH of 3.0 and a substance with a pH of 6.0 is:
The substance with the lower pH has 1,000 times as many hydrogen ions per volume of water.
Here's why: pH is a logarithmic scale, specifically based on the concentration of hydrogen ions (
moles of per liter, and- A solution with a pH of 6.0 has
moles of per liter.
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