Percentage Purity
Chemistry: Cambridge International GCSE Supplement, topic 3.3.11
Percentage Purity - Example
You can calculate the percentage purity of a substance by dividing the mass of the pure chemical by the total mass of the sample, and then multiplying this number by 100.
Gold
- The value of gold depends on how pure the gold piece is.
Test yourself on Percentage Purity
What values do we need to work out percentage purity?
(Mass of pure chemical ÷ total mass) × 100 is equal to what?