Question

Calculate the number of moles in 12.044 × 10^ 25 atoms of phosphorus

Answer 1

6.022×10^23 atoms of phosphorus contains 1mole of phosphorus.
therefore 1 atom of phosphorus contains = 1÷(6.022×10^23) mole
therefore, we get,
12.044×10^25 atoms of phosphorus contains = (12.044×10^25)÷(6.022×10^23) moles
=2×10^2 moles
=200 moles

Answer 2

200 moles is the correct answer.

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