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What is the pH of a 0.01 M HCl solution? (2021) 2021

Practice Questions

Q1
What is the pH of a 0.01 M HCl solution? (2021) 2021
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Questions & Step-by-Step Solutions

What is the pH of a 0.01 M HCl solution? (2021) 2021
  • Step 1: Understand that HCl is a strong acid, which means it completely dissociates in water.
  • Step 2: Recognize that the concentration of HCl (0.01 M) is equal to the concentration of hydrogen ions [H+] in the solution.
  • Step 3: Write the formula for pH, which is pH = -log[H+].
  • Step 4: Substitute the concentration of hydrogen ions into the formula: pH = -log(0.01).
  • Step 5: Calculate the logarithm: log(0.01) = -2.
  • Step 6: Substitute this value back into the pH formula: pH = -(-2) = 2.
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