Every chain has a relative molecular mass of approximately 80000.

These measurements only give the relative masses of the different flavours.

This relationship was used by Berzelius in early attempts to assign relative masses to the elements.

The relative mass of our impact and the planet mass are incompatible.

For other similar sounding terms, such as relative atomic mass, see the article on that subject.

Once we have our starting point, we know all the relative masses.

Describe an experiment by which you would determine the relative molecular mass of a gas or vapour.

We have seen that three types of colligative property can be used to determine relative molecular mass.

Due to its relative low mass it seems to be a former red supergiant star.

The same argument could be made against "relative atomic mass" used in this sense.