Engineering Board Exam Reviewer · Chemistry · medium

A solution has a pH of 4. What is its hydrogen ion concentration?

  1. 4 M
  2. 1 × 10-4 M
  3. 1 × 10-10 M
  4. 1 × 104 M

Answer

B. 1 × 10-4 M

Solution

[H+] = 10-pH = 10-4 M.

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