Nitrogen and oxygen react to form dinitrogen oxide and nitrogen oxide. In dinitrogen oxide, there are 28.0 g of nitrogen and 16.0 g of oxygen. In nitrogen oxide, 14.0 g of nitrogen combine with 16.0 g oxygen.

a. What is the ratio of the weights of nitrogen that combined with 16.0 g oxygen ?

b. how do these data illustrate the law of multiple proportion ? ​