the law of definite proportions was developed in 1808.
when was the law of definite proportions developed?
1808
the law of definite proportions contributed to, and was placed on a firm theoretical basis by, the atomic theory that john dalton promoted beginning in 1803, which explained matter as consisting of discrete atoms, that there was one type of atom for each element, and that the compounds were made of combinations of different types of atoms in fixed proportions.
law of definite proportions
law of definite proportions





























in chemistry, the law of definite proportion, sometimes called proust's law or the law of definite composition, or law of constant composition states that a given 





























chemical compound always contains its component elements in fixed ratio (by mass) and does not depend on its source and method of preparation. for example oxygen makes up about / of the mass of any sample of pure water, while hydrogen makes up the remaining / of the mass. along with the law of multiple proportions, the law of definite proportions forms the basis of stoichiometry.





























section::::history.
law of definite proportions