Question

Explain the term mass fraction.

Answer 1

The mass fraction of a component in a mixture is defined as the ratio of the mass of that component to the total mass of the mixture.

For a component A:

Mass fraction of A = `"Mass of A"/"Total mass of the mixture"`

Where:

Mass is usually in grams (g) or kilograms (kg)

The value is unitless, but it can be expressed as a decimal or percentage.