Sara chem review

for Sara

Charles’ Law

States that temp and volume have a direct relationship

(they do the same thing)

V1/T1

V2/T2

What temp in charles’ law in?

Kelvin

K=

C+273.15

Avogadro’s Law

States that equal volumes of all gases, at the same temperature and pressure have the same number of moles.

Volume is

proportional to the number of molecules

V1/N1

V2/N2

Combined gas law

The combined gas law allows us to use Boyle’s Law and Charles’ Law together when we have more variables/ known quantity available to us

P1V1/T1

P2V2/T2

Ideal Gas Law

An equation of state that shows how the volume, pressure, temperature, and number of moles of gas are related under the assumption that a gas behaves ideally.

PV=

nRT

R=

Universal gas constant

R number=

0.0812

Chemical Stoichiometry

The calculation of the quantities of material consumed and produced in chemical reactions.

Mole

The number is equal to the number of carbon atoms in exactly 12 grams of pure C12: Avogadro’s number.

6.023×10²³

Avogadro’s Number

6.023×10²³

Molar mass

The mass in grams of one mole of molecules or formula units of a substance; also called molecular weight.