equations etc to know Flashcards
OIL RIG
Oxidation Is Loss of electrons
Reduction Is Gain of electrons
Abogadro’s #
6.02x10^23
exothermic
heat released (negative change in heat)
endothermic
heat absorbed (positive change in heat)
change in H (heat) =
H products - H reactants
P
pressure
V
volume
T
temperature
n
amount
1 atm =
760 mmHg & 760 Torr
given: pressure and volume
P1V1 = P2V2
given: volume and temperature
V1/T1 = V2/T2
given: pressure and temperature
P1/T1 = P2/T2
given: pressure, volume, and temperature
P1V1/T1 = P2V2/T2
given: volume and amount
V1/n1 = V2/n2
STP =
0 degrees C & 1 atm
1 mole of gas @ STP = ___ L
22.4 L
P total =
P1 + P2 + P3 + …
PV = nRT
R = PV/nT
R (atm) =
(.0821L)(atm) / (mole)(K)
R (mmHg)
(62.4L)(mmHg) / (mole)(K)
ionic charge of: +1, -1
1 Eq
ionic charge of: +2, -2
2 Eq
ionic charge of: +3, -3
3 Eq
concentration =
n solute / n solution
solution =
solvent + solute
mass percent
m(g) / m(g) * 100%
volume percent
v(mL) / v(mL) * 100%
mass-volume concentration
m(g) / v(mL) * 100%
dilution
C1V1 = C2V2
C
concentration
M
molarity
molarity =
mole solute / L solution