Question

when 10g of sulphur is burnt in 10g if oxygen 20g of sulphur dioxide is produced ?find the mass of sulphur in 30g of oxygen? justify your answer by stating the law which governs your answers

Answer 1

Hi,
When 10g of sulphur react with 10g of oxygen gives 20g of sulphur dioxide.Given : 20g of sulphur react with 30g of oxygen so we can see that sulphur is limiting reagent as its amount is less as compared to oxygen.So 20g of sulphur react with 20g of oxygen to form 40g of sulphur dioxide and 10g oxygen remain unreactive.
Regards