So, if a compound is made by combining 1/4 from one chemical and the remaining 3/4 from another chemical, these proportions will always hold true, regardless of the amount of chemicals added. According to this law, if two elements can combine to form more than one compound, the masses of one element that combine with a fixed mass of the other element, are in the ratio of small whole numbers. According to law of multiple proportions whenever two elements form more than one compound, the different masses of one element that combine with the same mass of the other element are in the ratio of small whole numbers. The Law of Definite Proportions states that a chemical compound will always have the same proportions or amount of each element by weight, no matter what the amount is, or source. Law of Definite Proportion Examples The law of definite proportions is a law of science that says that a chemical compound is always made up of the exact same proportion of elements by mass. The law of definite proportions states samples of a compound will always contain the same proportion of … The law of definite proportions states that the samples of a compound will always contain the same proportion of elements by mass. The law of definite proportions and law of multiple proportions are used to explain the stoichiometry of compounds in chemical reactions. The laws of definite and of multiple proportions, along with conservation of mass, are known collectively as the laws of chemical composition. The law of multiple proportions, states that when two elements combine to form more than one compound, the mass of one element, which combines with a … For another take on these, the following short videos may be helpful: Law of definite proportions (2 m) Law of multiple proportions (4 m) 1) Law of multiple proportions was proposed by Dalton in 1803. The law of multiple proportion was based on one of the observation of the Dalton's atomic theory. The law of definite proportions is also known as Proust's law or the law of constant composition.