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What is the formula for calculating the pH of a solution?

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Question: What is the formula for calculating the pH of a solution?

Options:

  1. pH = log[H+]
  2. pH = -log[H+]
  3. pH = [H+]
  4. pH = 14 - pOH

Correct Answer: pH = -log[H+]

Solution: 

The formula for calculating pH is pH = -log[H+].

What is the formula for calculating the pH of a solution?

Practice Questions

Q1
What is the formula for calculating the pH of a solution?
  1. pH = log[H+]
  2. pH = -log[H+]
  3. pH = [H+]
  4. pH = 14 - pOH

Questions & Step-by-Step Solutions

What is the formula for calculating the pH of a solution?
  • Step 1: Understand that pH measures how acidic or basic a solution is.
  • Step 2: Know that pH is calculated using the concentration of hydrogen ions (H+) in the solution.
  • Step 3: The formula to calculate pH is pH = -log[H+].
  • Step 4: In this formula, [H+] represents the concentration of hydrogen ions in moles per liter (mol/L).
  • Step 5: To find the pH, take the logarithm (log) of the hydrogen ion concentration and then multiply it by -1.
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