How many molecules are present in each sample?8.55 mol SO2 : molecules SO2 0.603 mol CO : molecules CO a sample of NH3 containing Avogadro's number of molecules:molecules NH3

- 5.15*10²⁴ molecules of sulfur dioxide

- 3.63*10²³ molecules of carbon monoxide

- 6.02*10²³ molecules of ammonia

Explanation:

We begin from the relation that 1 mol of molecules contains NA of molecules

NA = 6.02*10²³

Now, we make rules of three:

1 mol has 6.02*10²³ molecules, therefore:

8.55 moles of SO₂ must have (8.55. NA) / 1 = 5.15*10²⁴ molecules of dioxide

0.603 moles of CO must have (0.603. NA) / 1 = 3.63*10²³ molecules of monoxide

Avogadro's Number of molecules of NH₃ are 6.02*10²³ molecules of ammonia