by the concentration of starch, or whether the results I got were due to the amounts of solution used. This would make both my results and conclusion invalid and unreliable. I also made sure that the temperature of the water bath was at the correct temperature and I kept on checking the temperature of both my amylase, and starch using a thermometer. I made sure both solutions were at the same temperature at all times throughout my experiments, so that temperature would not have an effect on my results…

relationship between temperature and reactant concentration on the rate of reaction for the hydrolysis of tert-Butyl Chloride, and to determine the validity of the proposed mechanism for the reaction. It was hypothesised that measuring the kinetics of this unimolecular substitution reaction would demonstrate the reaction rate for the hydrolysis of tert-Butyl Chloride utilising acetone as the solvent which should increase with both its increased concentration and temperature, to produce the product tert-Butyl…

The Effect of Activator Concentration on the Rate of Reaction of Fungal Amylase Aim Investigate the effect of Activator concentration (Calcium) on the rate of reaction of enzyme (fungal amylase) using Starch as a substrate. Introduction Enzymes are made of globular proteins and each enzyme molecule is of a particular complex shape complementary to the substrate, which it breaks. The shape of the enzyme and its active site is due to the specific folding…

The Effect Of The Concentration Of A Substance On The Rate Of Reaction Year 9 Chemistry Assignment Term 3 Introduction The purpose of this experiment was to measure and interpret the effect of a chemical concentration on a reaction rate. A collision theory is a theory proposed by Max Trautz and William Lewis that states: qualitatively explains how chemical reactions occur and why reaction rates differ for different chemical reactions (Wikipedia, 2015). An example of collision theory is when two…

Summary This experiment will measure the rate of oxidation of iodide ions by persulphate ions to derive the rate law for the reaction. Starch will be added to the reaction to facilitate the measure of time during the reaction. The reactant solutions will contain (NH4)2SO4 and KI, represented as: (NH4)2S2O8 + 2KI -> I2 + (NH4)2SO4 + K2SO4 This can be simplified to: S2O82- + 2I- -> I2 + 2SO42- These equations can only be carried out and be visible after the iodine has completely…

investigate the effect of enzyme concentration on the rate of reaction PREDICTION: An enzyme is a biological catalyst. They speed up the rate of a reaction however they do not affected themselves whilst doing this, which is why they are catalysts. Enzymes are made to be specific, this means that they can have only one substrate that they will work on. Each enzyme has an active site that is where their own specific substrate’s molecule will fit into. The enzymes catalyze chemical reactions beginning…

The Effect of Different Substrate Concentrations on the Rate of Reaction My aim is to investigate what happens when concentration of Hydrogen Peroxide is changed and how it affects the rate of reaction when it is broken down by the enzyme catalase (H2O2 à 2H2O + O2) Scientific knowledge. Enzymes are biological catalysts, regulating the rate at which chemical reactions take place without the enzyme being altered in the process. Enzymes bind temporarily…

OBJECTIVE: The experiment was carried out to investigate the effects of the increase in the enzyme concentration on the rate of reaction. By using self investigative and experimental skills, the experiment was done in order to determine how the rate of reaction will be altered, whether it will increase, decrease or remain constant when the different concentration of enzymes added. INTRODUCTION: Enzymes are produced naturally in plant, animal, and microbial cell. There are thousands of different…

hypothesis of this experiment was that an increase in concentration will increase the rate of reaction by decreasing the time taken for the colour change to occur. Figure 1.1 shows time on the x axis and concentration on the y axis, it can be seen that as [reactant] decreases, time increases.Thus, the results correlate with the hypothesis that an increase in concentration will produce a faster reaction time and subsequently a larger reaction rate - regardless of change in [KIO3] or [Na2S2O5], both…

The Effect on Concentration on Rate of Reaction Year 10 Term 1 - Using Chemistry Grace McKinlay Year 10 Science Term 1 – Using Chemistry Teacher – Ms. Roslyn Knight Table of Contents Background 1 Aim 3 Variables 3 Hypothesis 3 Materials 4 Risk Analysis 5 Method 6 Diagram 7 Discussion 12 Conclusion 12 Definitions of Essential Vocabulary 13 Background Marble, or calcium carbonate, is a fairly insoluble compound with the chemical formula CaCO3. This compound has a carbonate ion, which has…