What is the concentration of H+ ions in moles per dm3 of a sodium of pH 4.398?
Question 1 Report
What is the concentration of H+ ions in moles per dm3 of a sodium of pH 4.398?
Answer Details
The pH of a solution is defined as the negative logarithm of the concentration of hydrogen ions (H+) in moles per liter (pH = -log[H+]).
To determine the concentration of H+ in moles per dm3 (equivalent to liters), we can rearrange the formula: [H+] = 10^(-pH).
Therefore, for a sodium solution with pH 4.398, the concentration of H+ is:
[H+] = 10^(-4.398) = 3.98 x 10^(-5) moles per dm3.
The correct answer is option A: 4.0 x 10^(-5).
Note: A dm3 is the same as a liter.
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