Question

How many moles are `9.033 xx 10^(24)` atoms of helium (He) ?

Answer 1

We know that :
`6.022 xx 10^(23)` atoms of helium `=1` mole
So, `9.033 xx 10^(24)` atoms of helium `= (1)/(6.022 xx 10^(23)) xx 9.033 xx 10^(24)`
`= 15` moles , (or `15` mole)
Thus, `9.033 xx 10^(24)` atoms of helium are `15` moles of atoms.