3. Chemical Calculations

Question 1

Converting from g dm-3 to mol dm-3

Answer 1

g dm-3 = conc(mol dm-3) x Mr

Question 2

Ideal Gas Equation

Answer 2

pV = nRT

n = V/Vm

p - pressure (Pa)
V - Volume(m3)
n - moles (mol)
R - molar gas constant(8.31)
T - Temp(K)