1. Stoichiometry

Question 1

Ideal Gas Laws

Answer 1

1. Particles are in random motion
2. Volume occupied by the gas particles are negligible compared to the volume occupied by the gas
3. particles exert no force of attraction on other gases
4. no loss of energy occurs between collisions
5. the average kinetic energy of the particles is directly proportional to the temp (K) of the gas

Exceptions - At cold temps, gas particles can stick together

Question 2

Boyle’s Law

Answer 2

pressure exerted by a given mass of gas at constant temp is inversely proportional to the volume occupied by the gase

P₁V₁ = P₂V₂

Question 3

Charles’ Law

Answer 3

At constant mass and pressure, the volume is directly proportional to the temperature

V₁/T₁ = V₂/T₂

Question 4

Gay-Lussac’s Law

Answer 4

At constant mass and volume the pressure is directly proportional to temperature

P₁/T₁ = P₂/T₂

Question 5

Ideal Gas Equation

Answer 5

PV = nRT

_{P = pressure in Pa ( 1atm = 101000Pa)}

_{V = volume in m³}

_{R = Universal gas constant 8.314Jk^-1mol^-1}

_{Temp in K}

Question 6

Dalton’s Law of Partial Pressures

Answer 6

The total gas pressure is equal to the partial pressures of each individual gas in the mixture

P_total = P₁ + P₂ + P3…

Question 7

Equation for Dilution

Answer 7

C₁V₁ = C₂V₂