Kinetic theory

Introduction: The aim of this experiment was to determine the effect of varying concentrations of potassium iodide on its reaction with hydrogen peroxide. H2O2(aq) + 2H+(aq) + 2I-(aq) → 2H2O + I2 In this experiment, the hydrogen peroxide reacts with iodide ions to produce iodine. The iodine can be detected by its colour forming a blue-black solution. The detection of the iodine can be enhanced by the addition of starch solution. The sodium thiosulphate will react with the iodine ions and when the

Call 1600-111-533 (toll-free) for info. Formula Booklet – Physics XI Dear students Most students tend to take it easy after the board examinations of Class X. The summer vacations immediately after Class X are a great opportunity for the students to race ahead of other students in the competitive world of IITJEE, where less than 2% students get selected every year for the prestigious institutes. Some students get governed completely by the emphasis laid by the teachers of the school in which they

ions Objective This experiment was to determine the rate law for the crystal violet with hydroxyl ions reaction. Materials Crystal violet dye, sodium hydroxide (NaOH) and spectrophotometer were used in this experiment. Theory The rate of reaction is a topic in chemical kinetics that explains the speed at which the chemicals interact or it is the rate at which a product is formed by a chemical reaction. There are factors that determine the rate of a particular reaction. These factors include; reactant

Introduction Learning Outcome This experiment was aimed to determine the order of the hydrolysis reaction and to determine the effect of water:acetone ratio on the rate constant. Theory The hydrolysis of t-butyl chloride can be presented as the following equation: (CH3)3CCl + H2O (CH3)3COH + HCl NaOH is added to neutralise the HCl produced. NaOH + HCl NaCl + H2O (CH3)3CCl is a tertiary haloalkane in which the C atom is bonded to 3 methyl groups and a Cl group. A partial positive

Introduction: On the word of Shelton (2018) in the General Chemistry Ⅱ Lab Manual, “Kinetics is the study of the rates which chemical reactions occur at. The rate of reaction is dependent upon the change of concentration over the change in time” (p. 14). The objection of this lab was to establish the order of reaction with respect to persulfate ion and the overall rate constant. Experimental Procedure: For this lab, you will need three beakers that have a volume of 150mL, 2 graduated cylinders that

one and find out if catalase is the best catalyst for this decomposition. The collision theory and factors affecting reaction rates For a reaction to take place, two particles must collide with each other so they come in to contact. However, just colliding with each other does not initiate a reaction. Something called the activation enthalpy must be overcome. The activation enthalpy is the minimum (kinetic) energy required by a pair of molecules that are colliding before a reaction can occur. So

Lock and Key theory Enzymes are specific to a particular substrate molecule or a restricted group of substrate molecules. Surface area to volume Smaller organisms have larger surface area to volume ratio’s (surface area divided by volume) than

Chemical Reaction Among Hydrogen Peroxide, Iodide, and Acid To determine the rate law for a chemical reaction among hydrogen peroxide, iodide and acid, specifically by observing how changing each of the concentrations Experiment 3 Chemical Kinetics Objectives 1. To determine the rate law for a chemical reaction among hydrogen peroxide, iodide and acid, specifically by observing how changing each of the concentrations of H2O2, and H+ affects the rate of reaction. 2. To observe the

Enzymes are an important type of protein in which proposes to speed up chemical reactions of substrate molecules. They are specific, each enzyme can only bind one substrate and control one reaction, an example of the following is maltase which works on only one maltose, they can be used multiple times. Each enzyme has an optimum temperature, below the temperature the enzyme will work slowly or become inactive, on the other hand, above the temperature the enzyme is denatured. In addition, each enzyme

In Graph 1 the data shows an exponential rate of change as the molarity of the Potassium Iodine increases so does the average rate of reaction. The average rate of reaction is like trends in the data that are expected, as according to the collision theory an increase in the amount of Potassium Iodine will increase the number of collisions with sufficient energy and correct orientation. This correlates to the data recorded by Lawrence Kok in his research conducted in this area (results showed in Appendix