How do you convert the number of molecules into moles?

To convert the number of molecules into moles, you need to divide the number of molecules by Avogadro's number, which is approximately 6.022 × 10^23. Avogadro's number represents the number of atoms, molecules, or ions present in one mole of a substance.

Here's the formula to convert the number of molecules (N) into moles (n):

```

n = N / Avogadro's number

```

For example, let's convert 3.011 × 10^24 molecules of water (H2O) into moles:

```

n(H2O) = (3.011 × 10^24 molecules) / (6.022 × 10^23 molecules/mole)

```

```

n(H2O) = 5 moles

```

Therefore, 3.011 × 10^24 molecules of water is equal to 5 moles of water.