chemistry

Quote:

how many atoms are contained in 2.45 grams of sulfur

The Molar mass of S = 32.065 g/mole

The number of atoms, N, of an element is Avogadro's number times the number of moles of the element

N = 6.0221413x10 ²³ x 2.45/(32.065) = 4.6x10 ²²