Question

A sample of NH3 molecule irrespective of source contains 82.35% Nitrogen and 17.65% of Hydrogen by mass. This data supports: * 1 point Law of Conservation of Mass Las of Multiple Proportions Law of Definite Proportions Avogadro’s Law

Answer 1

Explanation:

law of definite proportions

Answer 2

A sample of NH3 molecule irrespective of source contains 82.35% Nitrogen and 17.65% of Hydrogen by mass. This data supports the C) Law of Definite Proportions.

Explanation:    

• According to the law of definite proportions or ratio, the samples of a compound will always have the same proportion of elements by mass.
• The law is fundamental to the study of stoichiometry in chemistry.
• The law of proportions is also known as the law of fixed constant, it states that the individual components that make up a chemical compound or composition will always be at a constant ratio(in terms of their mass rules).  
• This ratio is not dependent on evidence of chemical composition or the method through which it was made.
• The law of constant ratio states that chemical compounds are composed of elements that are in a constant ratio of mass to mass.
• This means that any pure sample of a compound, no matter what the source, will have the same elements in proportion to the mass.

For example, In the nitrogen oxide $(NO_{2})$  molecule, the ratio of the number of nitrogen and oxygen atom is always $1:2$. The ratio between nitrogen and oxygen molecules is always the same.