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Three compounds containing potassium and oxygen are compared. Analysis shows that for each 1.00 g of O, the compounds have 1.22 g, 2.44 g, and 4.89 g of K, respectively. Show how these masses demonstrate the Law of Definite Proportions?

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Answer

The law of proportion states that elements are combined in the ratio of whole numbers.                                                                

now,                            

1 g of 0 and the compounds are 1.22 g, 2.44 g, and 4.89 g of K

1 g of o = 1.22 g of K

and                                                  

1.22 x 2 = 2.44 g of K          

1.22 x 4 = 4.89 g of K              

or we can compare the ratio

2.44/1.22 = 2    and                            

4.89/2.44 = 2  

hence,                                                

the reading of K is in whole-number multiple of each other.