Courses for Kids
Free study material
Offline Centres
Store Icon

How does the law of definite proportions apply to compounds?

Last updated date: 16th Jun 2024
Total views: 372k
Views today: 7.72k
372k+ views
Hint: Giving to this law , every chemical compound holds a specific fixed and constant proportions (by mass) of its essential elements in the reaction.
This law statuses that a compound always comprises exactly the equal proportion of elements by mass.

Complete step by step answer:
This law of definite proportions is from time to time talked about as Proust's Law for the reason that it was in the beginning perceived by a French chemist named Joseph Proust. In the new world, this law appears obvious, but then again in Proust's day it was a new indication, because specific scientists thought that several combinations of elements could make convinced substances, instead of the substance requiring to be produced by a definite proportion.
This resource shows that the composition of a compound is not determined by its source or its process of research.
In water, e.g., the mass of O must continually have the equal ratio to the mass of H (mass ratio is \[\;O:H{\text{ }} = {\text{ }}7.94:1\]).
To tell uncertainty compounds containing the similar elements are the similar or different, we can define the proportions of their masses.
Compound \[\;1\] comprises \[15.0{\text{ }}g\] of \[\;H\] and \[120.0{\text{ }}g\] of \[O\]. Compound \[2\] comprises \[2.00{\text{ }}g\] of \[\;H\] and \[32.0g\] of \[O\]. Are the compounds similar or different?
Compound \[\;1\]: Mass ratio of \[O:H = 120.0g:{\text{ }}15.0g = 8.00\]
Compound \[2\]: Mass ratio of \[O:H = 32.0g\;:{\text{ }}2.00g = 16.0\]
The mass ratios are not the same. The compounds are dissimilar.

-This law of extents is a law of science that pronounces that a synthetic compound is ceaselessly imagined of the specific indistinguishable extent of components by mass. Along these lines, if a compound is made by joining \[1/4\] from one chemical and the leftover \[3/4\] from one more chemical, these proportions will continually hold true, irrespective of the amount of chemicals additional.
-Vinegar is an alternative common home item. Its chemical compound is \[{C_2}{H_4}{O_2}\], implication that it is through of \[2\] atoms of \[C\], \[4\] atoms of \[\;H\], \[2\] atoms of \[O\]. No other grouping of C, \[\;H\], and \[O\] could be combined to produce vinegar.
-The Law of Proportions confirms that chemical compounds are at all times created using the equal proportions, irrespective of the quantity of the compound which is being made.