Question

Help!!
There are 9.23 x 1023 molecules of water in a beaker, how many moles are there?

Answer 1

Answer: There are 1.53 moles present in $9.23 \times 10^{23}$  molecules of water in a beaker.

Explanation:

According to the mole concept, there are $6.022 \times 10^{23}$ molecules present in 1 mole of a substance.

So, number of moles present in $9.23 \times 10^{23}$ molecules are calculated as follows.

$Moles = \frac{9.23 \times 10^{23}}{6.022 \times 10^{23}}\\= 1.53 moles$

Thus, we can conclude that there are 1.53 moles present in $9.23 \times 10^{23}$  molecules of water in a beaker.