Acid-Base Equilibria

Question 1

Proof of weak acid through dilutions

Answer 1

[H+] decreases by less than a factor of 10; acid must have dissociated

Question 2

HX + RNH2

Answer 2

X- + RNH3+

Question 3

validity of assumptions

Answer 3

might be very valid, because [H+] due to acid may likely be very large

Question 4

when calculating pH of a buffer

Answer 4

calculate moles of acid and base to figure out values for eqn