Which of the Following Solutions Has the Least Buffer Capacity

question 28

Multiple Choice

Which of the following solutions has the least buffer capacity?

• A) A 1.0 L mixture of 0.100 M H₃PO₄ and 0.100 M H₂PO₄−
• B) A 1.0 L mixture of 0.200 M H₃PO₄ and 0.100 M NaOH
• C) A 1.0 L mixture of 0.200 M H₂PO₄− and 0.100 M HCl
• D) A 1.0 L mixture of 0.200 M H₂PO₄− and 0.100 M HNO₃
• E) All of the above have the same buffer capacity.