u1: formulas

Question 1

mols, mass, molar mass

Answer 1

n = m/M

Question 2

density, volume, mass

Answer 2

m = DV

Question 3

concentration, mols, volume

Answer 3

n = CV

Question 4

calculating heat

Answer 4

q = mC∆T

Question 5

relationship between heat and change in enthalpy of system (calorimetry)

Answer 5

• q(surr) = ∆H(sys)

Question 6

algebraic representation of hess’s law

Answer 6

∆Htargetreaction = Σ∆Hknownreactions

Question 7

equation to find enthalpy change (hess law)

Answer 7

∆Hrxn = Σ n∆H°f (products) - Σ n∆H°f (reactants)

Question 8

experimental enthalpy formula

Answer 8

∆Hr = n∆H˚r

Question 9

reaction rates

Answer 9

rate [] = ∆[concentration] / ∆time (s)

Question 10

reaction rate (collision)

Answer 10

reaction rate = (# of collisions)(% that are effective)