Moles Flashcards
1
Q
How large is a mole?
A
6.023 x 10^23
2
Q
What is the formula for the number of moles in a given mass?
A
Mol = Mass (g) / Mr (of element or compound)
3
Q
Why is the number for moles the one that it is?
A
When you get 6.023 x 10^23 of a molecule/atom, of any element or compound, then, they weigh exactly the same as the Mr (Relative Formula Mass) of the element or compound.
4
Q
Q - What is the weight of one mole of Carbon?
A
12g, the Ar of Carbon is 12
5
Q
What is the molar mass?
A
‘the mass of one mole’
