I need to know how to convert mass to moles and also moles to mass, if you can tell me the conversion factor that wold be much appreciated

Mole (unit) - Wikipedia, the free encyclopedia

It's not a conversion factor. What you need is an equation.

mass (g) = amount (moles) x molecular weight (g/mole)

You can work out the molecular weight by adding the atomic weights of all the atoms in the molecule up, You find this on a periodic table.

Moles always struck me as one of the cleverer units of measurement :)