Equations

Question 1

Moles

Answer 1

Moles = Mass / Mr

Question 2

Concentration (mol/dm)

Answer 2

Conc = Moles / volume

Question 3

Ideal gas equation

Answer 3

pV = nRT

Question 4

Ideal gas equation units

Answer 4

P = pressure = pa
v = volume = m^3
n = moles
r = 8.31
T = temperature = kelvins

Question 5

Ideal gas equation conversions

Answer 5

V
Metres to centimetres divide by a million

P
Kpa to pa times by 1000

T
Degrees to kelvins add 273

Mass
1 Tonne = 1000kg

Question 6

Atom economy

Answer 6

Mr of desired product
—————————- x 100
Sum of me of all reactants

Question 7

% Yield

Answer 7

Actual yield
————————. x 100
Theoretical yield