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

Author

36895

Card Set

Chem 112

Description

Reflects how dense the solute is in a solvent

Updated

2010-09-23T19:36:21Z

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