Question

What is the number of atoms present in 0.2 mole of P4 molecules?

Answer 1

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Answer 2

A P4 molecule contains four atoms of phosphorus. One mole of any type of molecule contains 6.02 X 10E23 molecules, so one mole of P4 would contain 6.02 X 10E23 molecules of P4. Since there are 4 atoms of phosphorus per molecule of P4, multiply 6.02 X 10E23 molecules x 4 to get 2.408 x 10E24 atoms per mole of P4.

However, we want to know the number of atoms in 0.2 mole, so multiply 2.408 x 10E24 by 0.2 to get 4.816 x 10E23 atoms.