Question

There are 2.43 x 1026 molecules of water in the Pacific Ocean. How many moles of water is this?

Answer 1

`n = 403.520\,mol`

Step-by-step explanation:

The number of moles is given by dividing the total number of molecule of water by the Avogradro's Number:

`n = (2.43* 10^(26)\,molecules)/(6.022* 10^(23)\,(molecules)/(mol) )`

`n = 403.520\,mol`

Answer 2

Answer: Thus there are 404 moles of water in this.

Step-by-step explanation:

According to avogadro's law, 1 mole of every substance occupies 22.4 L at STP and contains avogadro's number
`6.023* 10^(23)` of particles.

To calculate the moles, we use the equation:

`\text{Number of moles}=\frac{\text{Given molecules}}{\text {avogadro's number}}`

`\text{Number of moles of water}=(2.43* 10^(26))/(6.023* 10^(23))=404moles`

Thus there are 404 moles of water in this.