equations Flashcards
1
Q
molality (m)?
A
mol solute / kg solvent
2
Q
% w/w?
A
grams of solute / grams of solution x 100
3
Q
molarity (M)?
A
mol solute / liters solution
4
Q
mole fraction (X)?
A
moles component / total moles (solution)
5
Q
ppm?
A
mass - mg solute / kg solution, volume - mg solute / litres of solution
6
Q
ppb?
A
mass - mgg solute / kg solution, volume - mgg solute / litres solution
7
Q
freezing point depression?
A
ΔTf = Kf × m, or ΔTf = Kf × m x i - (if electrolyte)
8
Q
freezing point solution?
A
Tfsoln = Tfsolv - ΔTf
9
Q
boiling point elevation?
A
ΔTb = Kb x m, or ΔTb = Kb x m x i - (if electrolyte)
10
Q
boiling point solution?
A
Tbsoln = Tbsolv + ΔTb
11
Q
radius?
A
l = 2r
12
Q
pressure change?
A
ΔP = Psolv - Psoln
13
Q
P soln?
A
Psoln = XsolvPsolv
14
Q
Psoln with two compounds?
A
Psoln = XsolvPsolv + XsolutePsolute
15
Q
solubility?
A
c = Kp
