In this worksheet, we will practice calculating the purity of a substance based on its proportion by mass.
What is the equation that gives percentage purity in terms of the mass of the pure chemical and the mass of the sample?
An impure sample of aluminum bromide contains 4% contaminants by weight. What is the percentage purity of the sample?
An impure sample of magnesium chloride has a mass of 50 g. After perfect purification, 45 g of magnesium chloride is recovered. What is the percentage purity of the original sample?