<u>Answer:</u> The number of molecules present in given amount of water are
<u>Explanation:</u>
To calculate the number of moles, we use the equation:
Given mass of water = 4.6 g
Molar mass of water = 18.0 g/mol
Putting values in above equation, we get:
According to mole concept:
1 mole of a compound contains number of molecules.
So, 0.255 moles of water will contain number of molecules.
Hence, the number of molecules present in given amount of water are