How many moles are in #5.75 * 10^24# atoms of Al?

1 Answer
Jan 16, 2016

Answer:

9.55 mol of Al

Explanation:

To obtain the number of moles of a certain element given the number of atoms only, you have to divide it with Avogadro's number, #6.02 * 10^23 mol^(-1)#.

#mol Al = (5.75 * 10^24 Al# atoms#) * (( 1 mol) / (6.02 * 10^(23) Al #atoms#) #
#mol Al = 9.55 mol#