In your example the amount of essential oils in the cloves is 17 so the theoretical yield. 502g of cloves measured out. Your value compare with the mass percent of clove oil that has been reported to be present in cloves 14-20.
Solutions over the next week.
In your example the amount of essential oils in the cloves is 17 so the theoretical yield. So when a recipe calls for a clove how much garlic should one clove yield. I converted eugenol that i got from ground cloves through steam distillation into eugenol benzoate. The theoretical yield is the total available quantity of the target material.