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Quantitative chemistry

The most mathematical part of GCSE chemistry, and the most common reason otherwise strong students lose grades. Higher tier adds substantially here.

Topics in this section9
Published0 of 9
01

Conservation of mass and balancing equations

Why mass appears to change

Coming soon
02

Relative formula mass

Calculating Mr from a formula

Coming soon
03

Moles

The mole concept and Avogadro's constant

Coming soonHigher only
04

Reacting mass calculations

Using ratios from balanced equations

Coming soon
05

Limiting reactants

Identifying which reactant runs out

Coming soonHigher only
06

Concentration of solutions

Grams per cubic decimetre and mol/dm3

Coming soon
07

Percentage yield

Calculating and explaining why yield is below 100%

Coming soonHigher only
08

Atom economy

Calculating and why industry cares

Coming soonHigher only
09

Gas volumes

Molar gas volume calculations

Coming soonHigher only

All of this is free

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