Three compounds containing potassium and oxygen are compared. Analysis shows that for each 1.00 g of O, the compounds have 1.22 g, 2.44g, and 4.89 g of K, respectively. Show how these data support the law of proportion..
The law of proportion states that elements combine in whole number ratios. The gram readings for K are multiples of each other, both in grams and moles. Let us compare the ratios: 2.44 grams/1.22 grams = 2 4.89 grams/2.44 grams = 2
Therefore, Potassium always combines with Oxygen in a ratio of 2 is to 1.