Day 1 Equations

Question 1

pH given [H+] (or pKa)

Answer 1

pH = -log[H+] or [H+] = 10^(-pH)

Question 2

K or Ka

Answer 2

K = ([H+]^2)/(CAo - [H+])

Question 3

pH given pKa or n_acid or n_base

Answer 3

pH = pKa - log(n_acid/n_base)

Question 4

Hagen-Poiseuille Equation

Answer 4

ΔP = 32VLμ/D^2 = 128QLμ/πD^4

Question 5

Kf of HCl

Answer 5

1.86 K/m

Question 6

Van’t Hoff Factor(i) ; Degree of Dissociation(α) given i

Answer 6

i = αv + (1 - α) ; α = (i - 1)/(v - 1) : v = no. of ions formed from one formula unit of substance

Question 7

Freezing Point Depression

Answer 7

ΔT_F = iK_Fm