Question

How many moles are equal to 1.20 x 1024 atoms of sulfur?

Answer 1

1.20x1,024=1228.8 this is your answer.
hope that this helps.

Answer 2

Answer: 1.9926 moles of sulfur contains given $1.20\times 10^{24} atoms$ of sulfur.

Explanation:

According Avogadro's:

$\text{1 mole of an element}=6.022\times 10^{23} \text{atoms of an element}$

Given number of atoms of sulfur = $1.20\times 10^{24} atoms$

$1.20\times 10^{24} atoms= \text{Number of moles of sulfur}\times 6.022\times 10^{23} mole^{-1}$

Number of moles sulfur:

$\frac{1.20\times 10^{24} atoms}{6.022\times 10^{23} mol^{-1}}=1.9926 moles$

1.9926 moles of sulfur contains given $1.20\times 10^{24} atoms$ of sulfur.