Question

calculate the no of moles in 9gm of aluminum

Answer 1

Aluminium has molecular mass =27 grams.

So as you know,number of moles= mass/molecular mass,so number of moles= 9/27=1/3=0.33 moles.

Thanks.
Tripathy

Answer 2

Helloo!!

Mole = Given mass / molecular Mass

Here given mass of aluminum is 9
and molecular mass of aluminum is 26.98

So moles = 9/26.98
= 0.333 moles!!

hope it helps!