The progress of a reaction can be followed by monitoring the rate of formation of a product or the rate of removal of a reactant. The method chosen depends on the properties and physical states of the reactants and products.Measurements of concentration, gas volume, mass and colour can be taken.
For reactions that produce gases the volume of gas produced at regular time intervals can be measured or the loss of mass of reactants can be measured using a balance.
For reactions that produce gases the volume of gas produced at regular time intervals can be measured or the loss of mass of reactants can be measured using a balance.