A buffer solution is prepared by mixing 250. mL of 1.00 M HNO2 with 500. mL of 0.500 M calcium nitrite, Ca(NO2)2. Calculate the pH.

A buffer solution is prepared by mixing 250. mL of 1.00 M HNO2 with 500. mL of 0.500 M calcium nitrite, Ca(NO2)2. Calculate the pH.




a. 4.43
b. 3.35
c. 3.05
d. 3.65
e. 4.88



Answer: D