Question

How many moles of magnesium is 5.01 x 1022 atoms of magnesium?

Answer 1

Step-by-step explanation

Note that a mole of any substance has 6.02 x 10²³ atoms of that substance.

Let x represent the mole of magnesium present in 5.01 x 10²² atoms of magnesium.

Therefore,

`\begin{gathered} 1\text{ mole }=\text{6.02}*10^(23)\text{ atoms} \\ x\text{ mole }=5.01*10^(22)\text{ atoms} \\ \end{gathered}`

Cross multiply, and divide both sides by 6.02 x 10²³ atoms to get x