Question

You have 4.2 moles of water. How many oxygen atoms do you have?

Answer 1

Firstly, the formula of water is H2O. There is 1 mole of oxygen atoms per mole of water. Therefore, in 4.2 moles of water there are 4.2 moles of oxygen atoms. The real amount is calculated as follows:

`4.2 * 6.02 * {10}^(23) =`

`= 2.5284 * {10}^(24)`