Chemical Measurements Flashcards
1
Q
Solution
A
solute and solvent
2
Q
Molarity (M)
A
- mol solute/ L solution
- flaw: volume changes based on temp
3
Q
Solute
A
dissolved or diluted component
4
Q
Solvent
A
- liquid diluting/dissolving agent
- greater volume than solute
5
Q
Molality (m)
A
- mol solute/ kg solvent
- accounts for volume changes as temp changes
6
Q
Weight % (w/w or wt %)
A
- (mass solute/mass solution) x 100
- indep of temp
7
Q
Volume % (v/v or vol %)
A
(vol solute/vol solution) x 100
8
Q
Weight/ Volume % (w/v)
A
(mass solute/ vol solution) x 100
9
Q
Parts per million (ppm)
A
- (mass solute/mass solution) x 10^6
- 1 ppm = 1mg/L
10
Q
Parts per billion (ppb)
A
- (mass solute/mass solution) x 10^9
- 1 ppb = 1microg/L
11
Q
Analytical molarity
A
calculated M
12
Q
Equilibrium molarity
A
actual M of/in solution
