Flying_Buddha18
New member
I need to calculate the buffer capacity of Buffer A and B. The lab data is the following:
_____________________________________________Buffer A |Buffer B
Mass of NaC2H3O2 used to prepared buffer (g)_________0.1476 |1.4815
Volume of buffer prepared (mL)______________________ 100.0 |100.0
Molar concentration of HC2H3O2 in buffer (M)____________ 0.1 |1.0
Initial pH of buffer__________________________________ 3.51 |3.50
Volume of 0.5 M NaOH to raise pH by 2 units (mL)__________ 3.6 |35.0
Volume of 0.5 M HCl to raise pH by 2 units (mL)____________0.90 |9.0
Volume of 0.5 M NaOH at equivalence point______________4.0 |38.5
I got a value of 7X10^-5 for buffer A, is this right? How do u calculate Buffer capacity for both of them using the lab data?
_____________________________________________Buffer A |Buffer B
Mass of NaC2H3O2 used to prepared buffer (g)_________0.1476 |1.4815
Volume of buffer prepared (mL)______________________ 100.0 |100.0
Molar concentration of HC2H3O2 in buffer (M)____________ 0.1 |1.0
Initial pH of buffer__________________________________ 3.51 |3.50
Volume of 0.5 M NaOH to raise pH by 2 units (mL)__________ 3.6 |35.0
Volume of 0.5 M HCl to raise pH by 2 units (mL)____________0.90 |9.0
Volume of 0.5 M NaOH at equivalence point______________4.0 |38.5
I got a value of 7X10^-5 for buffer A, is this right? How do u calculate Buffer capacity for both of them using the lab data?