Why is there a loss of mass when heating sucrose?

Answer 1

The law of conservation of mass clearly states that the mass could not have been destroyed (nor created for that matter). Theresore, when the reaction with air took place, part of the mass of the sucrose would be converted to a gaseous state, and probably a chemical reaciton with the air would create a different compound, and would escape into the atmosphere. hope this answers the question.

Answer 2

When sucrose is heated, it undergoes a decomposition reaction and breaks down into simpler molecules like glucose and fructose. During this chemical reaction, some of the molecules escape as gases, resulting in a loss of mass. Additionally, there might also be water evaporation from the sucrose molecules, contributing to the loss of mass.