Question

what is law of constant proporvation .​

Answer 1

Answer:

Law of constant Proportions

In a chemical reaction compound always contain the same element present in definite proportion by mass irrespective of their source

It was given by Lavoisier

Example:- 18 gram of $H_{2}O$= 2 gram of Hydrogen+16 gram oxygen

Example:- 36 gram of $H_{2}O$ =4 gram of Hydrogen +32 gram of Oxygen

Proportion of

Mass of Hydrogen/Mass of Hydrogen=1/8

This verify law of constant Proportions as the ratio of mass of Hydrogen to the oxygen is always same