Question

How do I Convert Molecules to Moles?

Answer 1

To convert molecules to moles:

The conversion of moles to molecules or molecules to moles can be done by using Avogadro's number$(6.022x{10}^{23})$. The number of molecules are divided by Avogadro's number to convert molecules into moles. For example, There are $3.35x{10}^{22}$ water molecules in a gram of water. Find out the number of moles present in water?

$$\begin{gathered} \mathrm{Step}1:\mathrm{moles}\mathrm{of}\mathrm{water}=\mathrm{molecules}\mathrm{of}\mathrm{water}/\mathrm{Avogadro}\text{'}\mathrm{s}\mathrm{number} \\ \mathrm{Step}2:\mathrm{moles}\mathrm{of}\mathrm{water}=3.35\mathrm{x}{10}^{22}/6.02\mathrm{x}{10}^{23} \\ \mathrm{Step}3:\mathrm{moles}\mathrm{of}\mathrm{water}=0.056\mathrm{moles}\mathrm{in}1\mathrm{gram}\mathrm{of}\mathrm{water} \end{gathered}$$