What is the pH of a 0.001 M solution of sodium bicarbonate (NaHCO3)?

Practice Questions

Q1
What is the pH of a 0.001 M solution of sodium bicarbonate (NaHCO3)?
  1. 8.4
  2. 7.0
  3. 9.0
  4. 6.5

Questions & Step-by-Step Solutions

What is the pH of a 0.001 M solution of sodium bicarbonate (NaHCO3)?
  • Step 1: Understand that sodium bicarbonate (NaHCO3) is a weak base.
  • Step 2: Know that weak bases do not fully dissociate in water, meaning they do not release all their hydroxide ions (OH-).
  • Step 3: Recognize that the concentration of the sodium bicarbonate solution is 0.001 M.
  • Step 4: Use the approximate pH value for weak bases; for sodium bicarbonate, a 0.001 M solution typically has a pH around 8.4.
  • Step 5: Conclude that the pH of the 0.001 M sodium bicarbonate solution is approximately 8.4.
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