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What is the [H₃O⁺] of a solution with:
a. pH = 8.37
b. pH = 1.55

1 Answer

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Final answer:

The [H₃O⁺] of a solution with a given pH can be calculated using the formula [H₃O⁺] = 10^(-pH). For pH values of 8.37 and 1.55, the [H₃O⁺] is approximately 2.01 × 10^(-9) M and 2.81 × 10^(-2) M, respectively.

Step-by-step explanation:

The [H₃O⁺] of a solution can be calculated using the pH value. The pH is a measure of the concentration of hydronium ions in a solution.

The formula to calculate [H₃O⁺] from pH is:


[H₃O⁺] = 10^(-pH)


Let's calculate the [H₃O⁺] for the given pH values:

  1. For pH = 8.37, [H₃O⁺] = 10^(-8.37) = 2.01 × 10^(-9) M.
  2. For pH = 1.55, [H₃O⁺] = 10^(-1.55) = 2.81 × 10^(-2) M.

Therefore, the [H₃O⁺] for the given solutions are approximately 2.01 × 10^(-9) M and 2.81 × 10^(-2) M, respectively.

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