Question

How many moles are in 1.20 times 10^25 atoms of phosphorus

Answer 1

19.927 moles are in 1.20 times $10^{25}$ atoms of phosphorus.

What are moles?

A mole is defined as 6.02214076 ×$10^{23}$ of some chemical unit, be it atoms, molecules, ions, or others.

1 mole of any substance contain Avogadro's number of molecules so we can calculate the number of moles by dividing the provided number of atoms over Avogadro's number to obtain the number of moles .

Moles= $\frac{Atoms}{\;Avogadro's \;number }$

Moles=  1.20 X $10^{25}$ atoms ÷ 6.022 X $10^{23}$

= 19.927

Hence, 19.927 moles are in 1.20 times $10^{25}$ atoms of phosphorus.

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