How many molecules are in 2.570 moles of H2?

1 Answer
Mar 21, 2018

15.5*10^23 molecules (of H^2)

Explanation:

Number of moles * Avogadro's number (6.02*10^23)= # of molecules

So:

2.570*6.02= 15.5

15.5* 10^23= A very, very large number
So you can leave it expressed as 15.5* 10^23

(Note: Avagrdo's number is how many molecules/atoms are in a mole. There are always 12 things in a dozen. There are always 6.02*10^23 things in a mole.)