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What is the pH of a solution with a hydroxide ion concentration of 1.0 x 10^-4 M

Practice Questions

Q1
What is the pH of a solution with a hydroxide ion concentration of 1.0 x 10^-4 M?
  1. 10
  2. 4
  3. 7
  4. 14

Questions & Step-by-Step Solutions

What is the pH of a solution with a hydroxide ion concentration of 1.0 x 10^-4 M?
  • Step 1: Identify the hydroxide ion concentration given in the problem, which is 1.0 x 10^-4 M.
  • Step 2: Use the formula to calculate pOH, which is pOH = -log[OH-]. Substitute the value: pOH = -log(1.0 x 10^-4).
  • Step 3: Calculate the logarithm: pOH = 4.
  • Step 4: Use the relationship between pH and pOH, which is pH + pOH = 14.
  • Step 5: Rearrange the equation to find pH: pH = 14 - pOH.
  • Step 6: Substitute the value of pOH: pH = 14 - 4.
  • Step 7: Calculate the final pH: pH = 10.
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