Uncategorized

State the law of definite proportions. Explain it with the help of an example

By User
On

According to the law of definite proportion , a compound will always constitute the same element in fixed proportion by mass. This law was given by John Proust. This law defines the compound This law is not applicable for the isotopes.

For example: In H2O, the ratio of hydrogen and oxygen atoms is always 1:2. It always remains the same irrespective of the source of its formation.

Final answer:
According to the law of definite proportion , a compound will always contain elements with fixed ratio in mass.
Example : In case of Carbon dioxide CO2, the ratio of mass of carbon and oxygen is 12: 32 or 3:8 which remains the same irrespective of the source of formation of carbon dioxide.

Related Posts:

  1. Define 'Law of constant composition or definite Proportions'. Explain with a suitable example.
  2. What is the difference between atom and molecule?
  3. Explain following terms.(i) Hydrogen economy(ii) Hydrogenation(iii) Syngas(iv) Water - gas shift reaction (v) Fuel - cell
  4. Calculate the mass in g of:(a) 2 moles of CO2 (b) 2 N molecules of CO2.
  5. Why does ice float on water?
  6. Predict all the alkenes that would be formed by dehydrohalogenation of the following halides with sodium ethoxide in ethanol and identify the major alkene:(i) 1 - Bromo - 1 - methylcyclohexane (ii) 2 - Chloro - 2 - methylbutane(iii) 2,2,3 - Trimethyl - 3 - bromopentane.