Which solution has a greater concentration ph hydrogen ions (H+), a solution with pH of 3 or one with pH 7?

Expert Answers

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The pH scale range is from 0-14 with 7 being neutral.  The closer you get to 14 the more basic the solution is and the closer you get to 0 the more acidic the solution is.

The lower the pH the higher the H+ concentration.  A solution with a pH of 3 has a much higher concentration of hydrogen ions than the solution with the pH of 7.  A solution that is basic, or has a higher pH, has more has a high concentration of Hydroxide ions OH-.  Notice that if you combine a hydrogen ion with a hydroxide ion you get H2O, or water, which is a neutral pH.

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