Here's how to calculate the number of moles in 6.5 grams of sulfur:

1. Find the molar mass of sulfur (S):

* The molar mass of sulfur is approximately 32.06 g/mol. You can find this on the periodic table.

2. Use the formula:

* moles = mass / molar mass

3. Plug in the values:

* moles = 6.5 g / 32.06 g/mol

4. Calculate:

* moles ≈ 0.203 mol

Therefore, there are approximately 0.203 moles of sulfur in 6.5 grams.