Question

Calculate the number of molecules present in 0.5 mole of water.​

Answer 1

Answer:

A mole is about 6.022 * 10^23 of anything. So half a mole of water molecules is 3.011 * 10^23 molecules of water. 0.5 x 6.022 x 10^23 molecules of water.

Answer 2

Answer:

The number of molecules present in 0.5 moles of water is $3.11*10^{23}$.

Explanation:

A mole is a unit of measurement for the amount of substance present in a sample.  1 mole is a number that is equal to $6.022*10^{23}$ particles (Avogadro's constant).

Given number of moles of water = 0.5 moles

1 mole of any substance contains $6.022*10^{23}$ particles

⇒Number of molecules present in 0.5 moles of water = $0.5*6.022*10^{23}$ molecules

= $3.11*10^{23}$ water molecules