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What is the concentration of H+ ions in a solution with pH 4?

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Question: What is the concentration of H+ ions in a solution with pH 4?

Options:

  1. 0.0001 M
  2. 0.01 M
  3. 0.1 M
  4. 1 M

Correct Answer: 0.0001 M

Solution: 

[H+] = 10^(-pH) = 10^(-4) = 0.0001 M.

What is the concentration of H+ ions in a solution with pH 4?

Practice Questions

Q1
What is the concentration of H+ ions in a solution with pH 4?
  1. 0.0001 M
  2. 0.01 M
  3. 0.1 M
  4. 1 M

Questions & Step-by-Step Solutions

What is the concentration of H+ ions in a solution with pH 4?
  • Step 1: Understand that pH is a measure of the concentration of hydrogen ions (H+) in a solution.
  • Step 2: Recall the formula to find the concentration of H+ ions from pH: [H+] = 10^(-pH).
  • Step 3: Substitute the given pH value (which is 4) into the formula: [H+] = 10^(-4).
  • Step 4: Calculate 10 raised to the power of -4, which equals 0.0001.
  • Step 5: Conclude that the concentration of H+ ions in the solution is 0.0001 M.
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