A drug can be delivered using normal-sized particles or nanoparticles of the same carrier material.
| Form of carrier material | Cost in £ for each gram | Mass needed for each dose in g |
|---|---|---|
| Normal-sized particles | 1.20 | 0.050 |
| Nanoparticles | 4.00 | 0.015 |
Which statement about the cost of the carrier material for one dose is correct?
The normal-sized form costs less for one dose, because each gram costs less.
The nanoparticle form costs less for one dose, because a smaller mass is needed.
Both forms cost the same for one dose, because they are made of the same carrier material.
Both forms cost the same for one dose, because the smaller mass needed balances the higher price for each gram.
104 exam-style questions on AQA GCSE Chemistry 2.4 Bulk and surface properties of matter including nanoparticles, covering 2.4.1 Sizes of particles and their properties and 2.4.2 Uses of nanoparticles. Each one has a worked solution and a mark scheme showing where the marks go.