Question

What is the mass associated with `4.70xx10^22` `"sulfur atoms"`?

Answer 1

`"Approx. 2.5 g"`

Explanation:

We know that `N_A,"Avogadro's number,"` `6.022xx10^23` of `"sulfur atoms"` have a mass of `32.06*g` precisely. How do we know this?

And thus we can multiply the number quotient by the molar mass to give:

`(4.70xx10^22*"sulfur atoms")/(6.022xx10^23*mol^-1*"sulfur atoms")xx32.06*g*mol^-1-=`

`??g`