explain briefly THE LAW OF CONSTANT PROPORTION
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Answer:
short answer:
The law of constant proportions states that chemical compounds are made up of elements that are present in a fixed ratio by mass. The law of constant proportions is often referred to as Proust's law or as the law of definite proportions.
Explanation:
The law of constant proportions states that chemical compounds are made up of elements that are present in a fixed ratio by mass. This implies that any pure sample of a compound, no matter the source, will always consist of the same elements that are present in the same ratio by mass. For example, pure water will always contain hydrogen and oxygen in a fixed mass ratio (a gram of water consists of approximately 0.11 grams of hydrogen and 0.88 grams of oxygen, the ratio is 1:8).
The law of constant proportions is often referred to as Proust’s law or as the law of definite proportions. An illustration describing the mass ratio of elements in a few compounds is provided below. The ratio of the number of atoms of each element is provided below the mass ratio. For example, in a nitrogen dioxide (NO2) molecule, the ratio of the number of nitrogen and oxygen atoms is 1:2 but the mass ratio is 14:32 (or 7:16).
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Answer:
The law of constant proportions states that chemical compounds are made up of elements that are present in a fixed ratio by mass.
Invention - In the year 1794, the French chemist Joseph Proust formulated the law of constant proportions from his work on sulfides, metallic oxides, and sulfates.
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