Question

How many moles of sulfur can be found in a sample of 4.6×10 atoms of sulfur?

a) 0.76 moles
b) 1.12 moles
c) 2.43 moles
d) 4.01 moles

Answer 1

To calculate the number of moles of sulfur from 4.6×1022 atoms, divide the number of atoms by Avogadro's number, reaching approximately 0.76 moles, making option (a) correct.

Step-by-step explanation:

To find out how many moles of sulfur are in a sample with 4.6×1022 atoms of sulfur, you can use Avogadro's number, which is 6.022×1023 atoms per mole. This number is key in converting atoms to moles. The following calculation performs this conversion:

Number of moles = (4.6×1022 atoms) / (6.022×1023 atoms/mole)

= 0.76 moles of sulfur (Approx.)

Therefore, the sample contains approximately 0.76 moles of sulfur, which makes option (a) the correct answer.