Gases

Question 1

Combined gas law equation

Answer 1

P1V1/T1 = P2V2/T2

Question 2

Avagadro’s law (of gases)

Answer 2

V1/n1 = V2/n2

n= moles of gas

(1 mole of gas @ STP = 22.4L)

Question 3

Ideal gas equation

Answer 3

PV=nRT

P= pressure (atm)
V= volume (L)
n= moles
R= 0.0821 L atm/K mol (a constant)
T= temp (K)

Question 4

Dalton’s law

Answer 4

In a mixture of gases, the total pressure is equal to the combined pressures of the individual gases

Ptot = Pa + Pb + Pc…