The law of definite proportions was developed by Joseph Proust in 1806.
Joseph Proust
The Law of Multiple Proportions was developed by John Dalton based on the Law of Definite Proportions, was part of what laid the groundwork for his atomic theory, and for the basis of chemical formulas for compounds.English chemist John Dalton
The law you are referring to is the Law of Definite Proportions. This law states that a chemical compound always contains the same elements in the same proportions by mass, regardless of the source of the compound.
Dalton\'s principle of compounds supports the law of definite proportions.
In was in 1799 that Joseph Proust discovered the law of definite proportions, or Proust's Law. Proust was a French chemist.
Well definite is broad and multiple is more exact that's about what I can think of
For example the law of definite proportions.
The law of definite proportions states that a compound always contains the same elements in the same proportion by mass, regardless of the source of the compound. This means that for a given compound, the ratio of the masses of the elements is always constant.
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Joseph Louis Proust eleborated the Law of definite proportions.
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Yes, after the Law of definite proportions; but now it is clear that this law is not applicable to all known chemical compounds.