Multiple choice questions about buffering solutions

Name: Multiple choice questions about buffering solutions.
Brand: BrainMass
Price: 2.49 USD
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Which of the following solutions is not a buffer?

a. 125mL of 0.200M HCl added to 200mL of 0.400M CH3CO2-

b. 200mL of 0.400M HCl added to 125mL of 0.200M CH3CO2-

c. 200mL of 0.500M NaOH added to 200mL of 1.000M HF

d. 100mL of 0.500M H2PO4- added to 100mL of 0.100M HPO42-

e. 100mL of 0.200M HF added to 300mL of 0.200M NaF

The solution is given with a brief explanation of the correct multiple choice answer.

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