Help me solve this

Question

State the equality:

how many grams of sulfur are in 9.03x10²⁵ atoms of sulfur?

Answer 1

To answer this question, start with the number of atoms and convert it into grams using these two steps:

1) convert atoms into moles

2) convert moles into grams

1) Start with the given: 9.03x10^25 atoms of Sulfur, and divide it by 6.02x10^23 atoms per mole (also known as Avogadro's number).

9.03x10^25 atoms / 6.02x10^23 atoms per mole = 150 moles

2) Now convert 150 moles of sulfur into grams by multiplying by the molar mass, 32.07 grams per mole (found on the periodic table)

150 moles x 32.07 grams per mole = 4810.5 grams

Final answer: 4810.5 grams

Answer 2

First convert to moles, using the conversion factor 1 mol S/6.02 x 10²³ atoms S. Then convert to grams using the conversion 32.066 g S/ 1 mol S (molar mass from periodic table)

9.03 x 10²⁵ x 1 mol S/6.02 x 10²³ atoms S x 32.066 g S/1 mol S = 4.81 x 10³ g S.