I will be doing a lab on Hydrogen Phosphate buffer system tomorrow and I have a few questions about the buffer system. I am not sure if my assumptions are correct.
(1) What would happen to the rate of pH change if 5.0M HCl and NaOH were used instead of 0.50M?
My assumption is that, since the pH of the buffer does not depend on the actual concentration of the buffer, but on the ratio of the two parts, therefore, the rate of pH should not expect to change. Is this correct?
(2) Lets say I prepared a buffer at a different pH, how would the capacity of my buffer system change?
My assumption is that, the buffer capacity would not change upon the change of pH, is this correct?