Final answer:
To calculate the number of SO₂ molecules in 7.73 mol of SO₂, multiply the number of moles by Avogadro's number.
Step-by-step explanation:
To calculate the number of SO₂ molecules in 7.73 mol of SO₂, you can use Avogadro's number, which is 6.022 x 10³. Multiply the number of moles by Avogadro's number to find the number of molecules. In this case:
Number of molecules = 7.73 mol x (6.022 x 10³ molecules/mol)
Plugging in the values, we get:
Number of molecules = 4.65 x 10⁴ molecules
Learn more about Calculating the number of molecules in a given amount of substance