Acid/base, Buffer Formulas

Question 1

Calculation for pH of a strong acid

Answer 1

pH= -log(H3O+)

*make sure molecular formula is balanced before taking the - log

Question 2

Calculation for pH of a strong base

Answer 2

POH= -log(OH-)
pH= 14-answer

*make sure molecular formula is balanced before taking the - log

Question 3

Ph of a buffer solution

Answer 3

Henderson Hasselbach equation

Ph = pka + log (A- / HA)
Where, Pka = -log(KA)

Question 4

Blood pH calculation

Answer 4

6.1+log (HCO3- / 0.03 x pCO2)

Question 5

% ionization of an acid

Answer 5

A-/HA = 10^ph-pka

–> answer/1+answer x 100

Question 6

% ionization of a base

Answer 6

B / HB+ = 10^ph-pka
–> 1/1+answer