u1: formulas Flashcards
1
Q
mols, mass, molar mass
A
n = m/M
2
Q
density, volume, mass
A
m = DV
3
Q
concentration, mols, volume
A
n = CV
4
Q
calculating heat
A
q = mC∆T
5
Q
relationship between heat and change in enthalpy of system (calorimetry)
A
- q(surr) = ∆H(sys)
6
Q
algebraic representation of hess’s law
A
∆Htargetreaction = Σ∆Hknownreactions
7
Q
equation to find enthalpy change (hess law)
A
∆Hrxn = Σ n∆H°f (products) - Σ n∆H°f (reactants)
8
Q
experimental enthalpy formula
A
∆Hr = n∆H˚r
9
Q
reaction rates
A
rate [] = ∆[concentration] / ∆time (s)
10
Q
reaction rate (collision)
A
reaction rate = (# of collisions)(% that are effective)
