Determining The Activation Energy Of The Reaction Between Bromide Ion And Bromate Ion In Acid Solution

572 words - 3 pages

Determining the Activation Energy of the Reaction Between Bromide Ion and Bromate Ion in Acid Solution


By reacting Potassium Bromide and Potassium Bromate in the acid
solution in varies temperature, we can then determine the Activation
Energy of the reaction in different temperature through the equation:[IMAGE].


Experiment Temperature

Time t/s

ln 1/t

Temperature K

































1. ...view middle of the document...

So it is not advisable to perform the
experiment at high temperatures as the time of reaction is too short,
it is not easy for us to record.

4. Why is it not necessary to know how far the reaction has proceeded
at the point where the methyl red is decolourized?

In the experiment, the number of mole and the molarity of each
chemicals used are the same. And the appearance of the pink colour
only determines that there are some content of the reaction has
processed. As the result, it is only necessary for us to compare the
time required for the reaction mixture to reach the point the
decolourization occurs at different temperature.

5. The Arrhenius equation can be represented as: [IMAGE]

(a) Can [IMAGE] substitute k in this equation? Why?

[IMAGE] can substitute k in this equation. As in the above experiment,
the initial rate can be represented by [IMAGE] due to the constant
concentration of the reactants. Also the rate constant k is
proportional to the rate of the reaction when the temperature changes.
Therefore, [IMAGE] can substitute k.

(b) Derive an equation relating ln k and 1/T.


ln k = ln A – Ea/RT

ln k = ln A – (Ea/R)(1/T)

(c) Determine Ea by plotting a suitable graph. (Given R=8.3JK-1 mol-1




∵ lnk = lnA – Ea/RT

The slope=-Ea/R



=68904.6 J mol-1

=68.9046 kJ mol-1

6. Explain why the reaction rate can be affected by temperature.

As the temperature increase, the numbers of vibration increase, the
speed of the particles increase, then the frequency of collision
increases. As the result, the frequency of effective collision also
increases. Therefore the reaction rate will increase vice versa.

Other Papers Like Determining the Activation Energy of the Reaction Between Bromide Ion and Bromate Ion in Acid Solution

Determining the Metabolism of Gibberellic Acid in Four Genotypes of Brassica Rapa

1466 words - 6 pages Determining the Metabolism of Gibberellic Acid in Four Genotypes of Brassica rapa Laura Sablyak Biology 240W September 30th, 2012 Abstract The goal of this experiment was to evaluate how the plant hormone, Gibberellic acid (Ga3), affects how the four different genotypes (wild type, elongate, petite, and the rosette) in the Brassica rapa plant (also known as Wisconsin Fast Plant) use the plant hormone in their plant growth. There were

To What Extent Are Domestic Energy Resources Important in Determining the Energy Security of Countries?

705 words - 3 pages (b) To what extent are domestic energy resources important in determining the energy security of countries? (15) To have energy security means to have access to reliable and affordable energy sources. E.g. Russia and their natural gas reserves. Countries/regions/localities that do not haver this are said to be energy insecure. E.g. Rural communities in Zimbabwe or the UK winter fuel allowance for the elderly is a recognition of fuel poverty

Experiment 12: Determination of the Enthalpy (Heat) of Reaction of a Monobasic Acid with Sodium Hydroxide

2712 words - 11 pages . Conducting a reaction between two substances in aqueous solution, allows the enthalpy of the reaction to be indirectly calculated with the following equation. q=m x c x Δ t The term q represents the heat energy that is gained or lost. C is the specific heat of water, m is the mass of the water and Δ t is the temperature change of the reaction mixture. The specific heat and mass of water will either gain or loss heat energy in a reaction that occur

Invetigation of Action of Saliva and Hydrochloric Acid in Two Carbohydrate Solution

563 words - 3 pages UNIVERSITI TUNKU ABDUL RAHMAN CENTRE FOR FOUNDATION STUDIES FOUNDATION IN SCIENCE JAN 2016 FHSB 1214 BIOLOGY I TUTORIAL 1 BASIC MOLECULES OF CELLS I Instructor’s Guide: 1. Standard answers are not encouraged. Discuss with the students and lead them to the correct answer. 2. Allow and push the students to express and explain the answers, at the same time, correct their mistakes or concepts. 3. If the tutorial questions

Determining the Causes and Effects of Water Pollution in Lake Huron

950 words - 4 pages Bertie Barfield ENG/115 Determining the Causes and Effects of Water Pollution in Lake Huron The Great Lakes, Lake Erie, Michigan, Huron, Superior, and Ontario, are our largest freshwater system. Lake Huron, like the other Great Lakes contain many species of wildlife, and is in danger of being polluted. This pollution is harmful to fish, wildlife stocks, and to the humans of this region. At the University of Mississippi, Latham, A

• Read Each Scenario and Determining the Following:

738 words - 3 pages • Read each scenario and determining the following: a. Does the scenario describe a sexual assault? b. If so, what type? c. If rape, what type? d. Who is the victim? e. Who is the alleged perpetrator Scenario 1Minnie Lee and Sandra Chip are both sergeant first class attending the Advanced Noncommissioned Officer Course (ANCOC). They have become good friends during their training and have a lot in common

Determining The Age Of A Fossil

2927 words - 12 pages dating from 600 million to 500 million years ago contain fossils of invertebrates, including those of extinct sea animals called trilobites. Remains of fish first appear in strata about 400 million years old. Some of the upper strata, which formed between 330 million and 260 million years ago, contain tracks of such early land animals as amphibians and small reptiles (internet article).Certain fossils indicate that particular groups of plants or

The Role of Management Commitment in Determining the Success of a Behavioural Safety Intervention

2830 words - 12 pages management tool. The specific objectives of the research were to investigate the relative importance of management and observer commitment and goal-setting quality in determining the success of the intervention by: I) Evaluating the success of a self-administered intervention in terms of pre- and post- intervention safety performance scores (as phase one); ii) Systematically evaluating the relationships between management commitment, facilitator (or

Membership Size Is the Crucial Factor in Determining the Impact of Pressure Groups

1427 words - 6 pages ‘’Membership size is the crucial factor in determining the impact of pressure groups’’ Discuss A pressure group can be defined as a number of people who work together to make their concerns known tho those in government and to influence the passage of legislation. In the USA pressure groups fulfil the role of representation and participation for people who may not necessarily have been active in pressure groups before. There are a number of

The Wavelemgth of Light and Its Energy

916 words - 4 pages 1) Describe the physical properties of light and explain the relationship between a wavelength of light and its energy. â–¡ Light consists of particles called photons that move as waves. Photons with shorter wavelengths have more energy than those with longer wavelengths. 2) Diagram the internal structure of a chloroplast, and explain how its components interact and facilitate the process of photosynthesis. â–¡ In plants

Energy of the Future

1630 words - 7 pages Brandon Hernandez ICSM: Writing About Survival Prof. Stafford December 13, 2012 Energy of The Future In today’s day and age roughly sixty percent of citizen of the United States get their electricity from fossil fuels. This is not too bad but this is still a problem due to the fact that it causes a lot of pollution from the burning of fossil fuels. Out of one hundred percent, wind energy is responsible for giving four percent of the

Related Essays

Investigating The Effect Of Concentration On The Speed Of The Reaction Between Hydrochloric Acid And Sodium Thiosulphate

1244 words - 5 pages concentration the faster the reaction. The reaction which occurred in experiment between hydrochloric acid and sodium thiosulphate had sufficient activation energy when there was a high concentration of sodium thiosulphate a diagram can be show how the reaction occurs: [IMAGE] [IMAGE] My graph seems to have no anomalous results, none seem to stick out from the rest and so my data is not skewed, and the results

Common Ion Effect And Buffers Essay

894 words - 4 pages EXPERIMENT 4: COMMON-ION EFFECT AND BUFFERS ------------------------------------------------- ANSWERS TO QUESTIONS: 1. ACCOUNT FOR THE DIFFERENCES IN COLOR OF SOLUTIONS 1 AND 2 AFTER ADDING METHYL ORANGE INDICATOR. A red color is given off by a methyl orange indicator in an acidic solution (pH<3.1), whereas a yellow color is observed for a basic solution (pH>4.5). An intermediate between the two colors i.e. orange, can

Investigate The Action Of Saliva And Hydrochoric Acid In Two Carbohydrate Solution

976 words - 4 pages polysaccharide into a smaller unit maltose, which is a disaccharide. 4) H+ is formed from Hydrochloric acid in solution B to break down the intermolecular bond of solution B. The hydrolysis of the bond occur is done with an acid to reduce sugar. 5) The activity of an enzyme depends on the temperature to work at its optimum and the optimum temperature where the reaction of the enzymes are at its best is 37 ºC. Consequently, solution B in test tube 1 is

Determining The Metabolism Of Gibberellic Acid In Four Genotypes Of Brassica Rapa

1897 words - 8 pages Erica Osiecki Biology 240W February 19, 2016 Determining the Metabolism of Gibberellic Acid in Four Genotypes of Brassica Rapa Abstract: The goal of this experiment was to evaluate how the plant hormone Gibberellic Acid (GA3) affects how the four different genotypes in the Brassica rapa plant use the plant hormone in their plant growth. The Brassica rapa plant (dicot) is also known by the trademark name Wisconsin fast plant because