The gram formula mass (GFM) of a substance is known as the mass of one mole. Relative atomic masses of selected elements can be found in the SQA Data Booklet.These can be used to calculate the ...

Whereas two solutions at the same concentration will have the same mass of the chemical per liter of solution but are therefore likely to have differing numbers of molecules of that chemical per liter ...

or even calculate the number of moles in a certain mass, a formula triangle can be used. Using the formula triangle is straightforward. Simply cover whatever part of the triangle you are trying to ...