Question

2. State the law of definite proportion & give one example ​

Answer 1

Answer:

a chemical compound will always have the same proportion or amount of each element by weight

ex : carbon Dioxide is composed of one carbon atom and two oxygen atoms

Answer 2

Answer:

The law of definite proportions states that samples of a compound will always have the same proportion of the elements by mass.

Explanation:

The law of definite proportions states that samples of a compound will always have the same proportion of the elements by mass. Also called Proust's law or the law of constant composition. This law forms the basis of stoichiometry.  It makes sure that the chemical compound is always made using the same proportions, despite the amount of the compound which is being made.  We can see that there are numerous examples of this law. First, let us take the example of vinegar. It is made from 2 atoms of carbon, 2 atoms of oxygen, and 4 atoms of hydrogen. There is no other combination of oxygen, carbon, and hydrogen that could be combined to form vinegar.  Another example is water. Water is found to contain 88.81% oxygen and 11.19% hydrogen by mass, it doesn’t matter how it was prepared or from where the sample of water came from.