By Cathy Wong, ND - Reviewed by a board-certified physician. Ylang ylang essential oil is a type of essential oil commonly used in aromatherapy. Sourced from the flowers of Cananga odorata (a plant native to the Philippines and Indonesia), ylang ylang essential oil is said to offer a variety of health benefits.
Equilibrium constants can be used to calculate the concentrations of reactants and products that will be present at equilibrium. Learning Objective. Calculate the concentrations of reaction components at equilibrium given the starting concentrations and the equilibrium constant.
In stoichiometry calculations, we assume that reactions run to completion. However, when a chemical reaction is carried out in a closed vessel, the system achieves equilibrium. Equilibrium occurs when there is a constant ratio between the concentration of the reactants and the products. Different reactions have different equilibria. Some may appear to be completely products, however, all reactions have some reactants present.