Learnt something new:)

I learnt something new today..Mole of a substance is the same as Amount of
a substance..The meaning remains the same..But i kept forgetting to write it
as amount of mole..Besides these, i also learnt that relative molecular mass
equals to sum of the relative atomic mass..The difference is tat relative
molecular mass is the sum of the relative atomic masses of all atoms whereas
relative atomic mass is the mass of one atom of an element..After all the
explaination, my class was asked to do tutorial 2A..