Equations

Question 1

Moles of gas

Answer 1

Volume/24dm^3

Question 2

Relative atomic mass

Answer 2

(Mass x abundance) + (mass x abundance) / total abundance

Question 3

Rf value

Answer 3

Distance travelled by sample/ distance travelled by solvent

-> always less than 1

Question 4

Calorimetry

Answer 4

q= mCt

q -> heat energy (j)
m -> mass in g
C -> specific heat capacity
t -> temp change

Question 5

Enthalpy

Answer 5

Delta H = q / moles

change in H is measure in kj/mol