Question

A mixture contains 31.25 g of salt and 11.60 g of sugar. What is the mass percentage of salt in this mixture?

Answer 1

Given the mass of salt in the mixture = 31.25 g salt

Mass of sugar in the mixture = 11.60 g sugar

Total mass of the mixture = 31.25 g + 11.60 g = 42.85 g mixture

Mass % of a substance in the mixture can be calculated using the formula:

Mass % =
`(Mass of substance (g))/(Mass of mixture) * 100`

Mass % of salt =
`(31.25 g salt)/(42.85 g mixture) * 100 = 72.9 %`