Chem 112
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What is molarity?
Moles of solute per Liter of solution.. M=mol/L

What is molality?
Moles of solute per Kg of solvent.. m=mol/kg

What is mole fraction?
Moles of component solving for per total # of moles

What is mole percent?
Mole fraction X 100

What is mass (or volume) fraction?
Mass of solute per total mass of solution

What is mass (weight) percent or percent by weight?
Mass fraction X 100

What is volume percent or percent by volume?
Volume fraction X 100

What us ppm (parts per million)?
Mass fraction X 10^6

What is ppb (parts per billion)?
Mass fraction X 10^9

What does temperature cause change in?
Volume

What concentration is temperature dependent?
Molarity

What do u assume is the solvent if it's not stated in the problem?
Water

If you are given weight% (mass percent), what sample size will be chosen?
100g of solution

If you are given Molarity, what do u assume?
1 Liter (1000 mL)

If you are given Molality, what do u assume?
1 Kg (1000g)

In problems that are given Molarity & Liters are assumed, the Molarity equals ________ of the solute.
The moles

To get from grams > kg, what do u do?
Move the decimal 3 places to the left

To get from mL > L, what do u do?
Move the decimal 3 places to the left

Density = ______/_______
Mass/Volume