Exam 2 Formulas

Question 1

What is the formula to convert from K_p to K_c?

Answer 1

K_p = K_c(RT)^∆​n

Question 2

What is the formula for pH?

Answer 2

-log[H⁺]

Question 3

What is the van’t Hoff equation that relates equilibrium constants and temperatures?

Answer 3

ln(K₂/K₁) = (∆H/R)(1/T₁ - 1/T₂)

Question 4

What is the equation relating free energy (G) to the reaction quotient (Q)

Answer 4

∆G = ∆G^º + RTlnQ

Question 5

What is the formula for pOH?

Answer 5

-log[OH^-]

Question 6

What is the equation relating free energy (G) and the equilibrium constant K?

Answer 6

∆Gº = -RTlnK

Question 7

How do you find [H⁺] concentration from pH?

Answer 7

10^-pH

Question 8

How do you find [OH^-] concentration from pOH?

Answer 8

10^-pOH