Chemistry B
Equations
Mole
Phases of Matter
Stoichiometry
Symbols
S - Solid
L - Liquid
G- Gas
Aq- water solution
Word Equations
Reactants and products
EX: Iron (s) +chlorine (g) -> iron (lll) chloride (s)
Skeletal - FeCl3 (aq) + Na2CO3 (aq) -> NaCl(aq) + Fe2(CO3)3 (s)
Balanced - Fe-2 Cl-6 Na-6 CO3-3 : Fe-2 Cl-6 Na-2 CO3-3
6.02*10^23
Particles
Atoms
Molecules
Formula Unit
Ion
Molar mass - mass of 1 mol of a substance
Kinetic Molecular theory - attempts to explain the properties of gases
Particles are small and separated by empty space
No significant attractive or repulsive forces
Particles are in constant, random motion
Kinetic Energy - KE+ 1/2 mv^2
Temperature
Measure of the average kinetic energy of the particles
At a given temperature, all gases have the same kinetic energy
Pressure
click to edit
Collision of gas particles with the walls of their containers
Force per unit area
Air pressure is measured using a barometer
Gas Laws
Boyle's Law
Charles's Law
Gay Lussac's Law
Ideal Gas Law
Mole ratio
1/ molar mass
moles unknown /moles known
molar mass unknown / 1 mole