Answer:
There are 2,04x10 e-6 moles of water in 1.23x10e18 molecules
Explanation:
We use Avogadro's number, according to which in 1 mole of any substance there are 6,023 x 10 e23 particles (example: atoms, molecules). We calculate the number of moles according to the following simple three rule:
6,023 x 10 e23 molecules-----1 mol of water
1.23x10e18 molecules----x=
x=(1.23x10e18 molecules x1 mol of water)/6,023 x 10 e23 molecules
x=2,04x10 e-6 moles of water
