limitedburan

Jan 28, 2007 If your experiment is activation of the reaction between bromide and bromate ions in acid solution, then Meythl Red solution is used as an indicator in this experiment. The bromine produced during the reaction reacts very rapidly with phenol (forming tribromophenol). The reaction between bromide and bromate ions in acid solution is a slow chemical reaction at room temperature. This may be due to the high activation energy of the reaction, which required 56.676 kJ of energy in order for a reaction to take place.

Chemistry f336 • 1. Web Game Pirate Galaxy Gameplay. 1 P a g e Kinetics of the reaction between Bromate (V), Bromide and Hydrogen ions, By Charles Ross Individual Investigation Report (F336) Kinetics of the Reaction between bromate (V) Bromide and Hydrogen ions By Charles Ross • 2 P a g e Kinetics of the reaction between Bromate (V), Bromide and Hydrogen ions, By Charles Ross Aim The Aim of my investigation is to measure how the concentration of Potassium Bromide affects the rate of reaction when added to a solution of sulphuric acid, Potassium Bromate (V) and Phenol. The equation that represents the concentration of the solution affected by Potassium Bromide is: BrO3 - (aq) + 5Br- (aq) + 6H+ (aq) 3Br2 (aq) + 3H20 (l) I am going to alter the concentrations of the Potassium Bromide, Potassium Bromate and the sulphuric acid so that I am able to find the rate of reaction with respect to each individual reactant. From this I can derive the rate equation, Rate = K [Br- ] [BrO3 - ] [H+ ]2 I am also going to investigate the effect that temperature has on the rate of reaction as well as the rate constant and use the Arrhenius equation to work out the activation enthalpy of this reaction. Background information The rate of a reaction is the speed at which the reactants react together to produce the product or products of that reaction.

To measure the rate of reaction several different types of measurements have to be measured as the rate of reaction cannot be directly measured. To measure the rate of reaction, there are four factors that are of concern to me that affect the rate of reaction, these are:  Temperature  Concentration  Presence of a catalyst  Pressure (gases) To fully understand what happens when changing a concentration of a reactant, the collision theory must be referred to. The collision theory states that when suitable particles of the reactant hit with each other, only a certain percentage of the collisions cause any noticeable or significant chemical change; these successful changes are called successful collisions. The successful collisions have enough energy, also known as activation energy. This results in the products of the reaction. Increasing the concentration of the reactant particles will bring about more collisions and therefore many more successful collisions, increases the rate of reaction. My diagrams below will demonstrate this effect.