ICSE Class 10 Chemistry Mole Concept and Stoichiometry
Gas Laws
Gas lawsAtomic Mass and Molecular Mass
Scientists use carbon-12 scale (atomic mass unit) to compare masses of different atoms and molecules of elements and compounds.
Atomicity is the number of atoms constituting a molecule. Valency is the combining capacity of elements.
The chemical formula of a compound shows the exact number of constituent atoms.Mole Concept
Mole fraction of a component in a solution is equal to the ratio of no. of moles of that component to the total no. of moles.
The molarity of a substance in solution is defined as the number of moles of solute per litre of solution.
Molality is defined as the no. of moles of the solute in 1kg of solvent
