C4 Chemical calculations Flashcards
1
Q
What’s the calculation for number of moles in a specific mass
A
number of moles = mass (g) / Ar
2
Q
what’s the calculation for percentage yield
A
percentage yield = mass of product produced / maximum mass of product possible x 100
3
Q
what’s the calculation for atom enconomy
A
% atom economy = relative formula mass of desired product / sum of the relative formula masses of reactants
4
Q
what the calculation for concentration
A
concentration (g/dm^3) = amount of solute (g)/ volume of solution (dm^3)
5
Q
calculation for the number of moles of gas
A
number of moles of gas = volume of gas (dm^3) / 24 dm^3
