A buffer is prepared by adding 100mL of 0.50 M sodium hydroxide to 100mL of 0.75 M propanoic acid. Is this a buffer solution, and if so, what is its pH?

A. It is a buffer, pH = pKa of propanoic acid
B. Since sodium hydroxide is a strong base, this is not a buffer.
C. It is a buffer, ph is less than pKa of propanoic acid
D. It is a buffer, pH is greater than pKa of propanoic acid
E. It is a buffer, pH = pKa of sodium propanoate

Question

A buffer is prepared by adding 100mL of 0.50 M sodium hydroxide to 100mL of 0.75 M propanoic acid. Is this a buffer solution, and if so, what is its pH?

A. It is a buffer, pH = pKa of propanoic acid
B. Since sodium hydroxide is a strong base, this is not a buffer.
C. It is a buffer, ph is less than pKa of propanoic acid
D. It is a buffer, pH is greater than pKa of propanoic acid
E. It is a buffer, pH = pKa of sodium propanoate

anonymous · Answer

its D