I did a lab and it asks me to calculate this but I don't know what numbers to use.
a. the total number of moles of each species in the buffer;
b. the initial concentrations of acetic acid and acetate ion in the buffer;
c. the theoretical number of moles of OH– needed to change the pH by one unit;
d. the actual number of moles of OH– added to change the pH by one unit;
e. the theoretical number of moles H3O+ needed to change the pH by one unit;
f. the actual number of moles of H3O+ added to change the pH by one unit.

Question

I did a lab and it asks me to calculate this but I don't know what numbers to use. 
a. the total number of moles of each species in the buffer;
b. the initial concentrations of acetic acid and acetate ion in the buffer;
c. the theoretical number of moles of OH– needed to change the pH by one unit;
d. the actual number of moles of OH– added to change the pH by one unit;
e. the theoretical number of moles H3O+ needed to change the pH by one unit;
f. the actual number of moles of H3O+ added to change the pH by one unit.

jfraser · Answer

did you make the buffer by weighing out different substances, like sodium acetate and acetic acid?

mony01 · Answer

we were already working with pH=5,4,6. We just added amounts of sodium acetate and acetic acid and mix them with either hydrochloric acid or sodium hydroxide