Determination of the Enthalpy Change of a Reaction Determine the enthalpy change of the thermal decomposition of calcium carbonate by an indirect method based on Hess' law. Determination of the Enthalpy Change of a Reaction Determine the enthalpy change of the thermal decomposition of calcium carbonate by an indirect method based on Hess' law. Using the proposed method of obtaining results, these values were gathered: Reaction 1: CaCO3(s) + 2HCl(aq) CaCl2(aq) + CO2(g) + H2O(l) GRAPH ¼ in
Enthalpy Change of A Reaction If Calcium Carbonate, CaCO3, is heated it decomposes into Calcium Oxide, CaO and Carbon Dioxide, CO2. [IMAGE]CaCO3 CaO + CO2 The aim of this experiment is to determine the enthalpy change of this reaction. To do this I will react both Calcium Carbonate and Calcium Oxide, separately, with 2mol dm-3 Hydrochloric Acid, HCl. By recording the temperature changes in each reaction, and using Hess's Cycle, I will be able to work out the enthalpy change. ====
Use of Enthalpy Changes of Metal Reactions The problem: The problem that I will investigate is how to use enthalpy changes of metal reactions to experimentally test the reactivity series of common metals. Therefore the area that I am looking at is reactions involving metals and the heat energy that is evolved when these take place. In brief the reactivity series of metals is a list in which metals are ranked according to their reactivity, from the most reactive metals (such as Pottassium)
How changing the concentration changes the rate of reaction. Introduction We are going to look at the following factors during this investigation: 1 Why altering rate could be an advantage 2 Good ideas to control the rate of reactions 3 Briefly mention the factors that can change the rate of reaction such as: - Temperature Surface Area Catalyst Concentration I am going to find out if changing the concentration of nitric acid in water and see if it has any effect on
Investigation into the Factors that Affect the Enthalpy Change During a Displacement Reaction The Task -------- To investigate the factors affecting the enthalpy change during a displacement reaction. Background Knowledge ==================== In this investigation a displacement reaction will be observed. A displacement reaction occurs when more reactive metal displaces, (or removes) a less reactive metal from a solution of its salt. Also known as chemical bullying because
How the change of Hydrochloric Acid concentration affects the rate of reaction with Marble Chips Aim To find if changing the concentration of an acid will increase or decrease the rate of the reaction when marble is dissolved in hydrochloric acid. With the equation CaCO3 + 2HCl CaCl2 +H2O + CO2. The rate of the reaction affects how quickly the CO2 is produced. Background Knowledge ==================== The rate of reaction depends on how often and how hard the reacting particles collide with each
Investigation to find out if changes in concentration of acid affect the rate of a chemical reaction PLANNING – Title – Investigation to find out if changes in concentration of acid affect the rate of a chemical reaction. Introduction – The rate of reaction can be defined as the speed at which a reaction takes place. The rate of reaction tells us how quickly a chemical reaction has happened. There are many things that can affect the rate of reaction, (some of these are shown in figure 1 below
To investigate the temperature change in a displacement reaction between Copper Sulphate Solution and Zinc Powder Preliminary Experiment: Correlating Magnesium Powder and Copper Sulphate Solution ========================================================= I will mix 4cm of Magnesium ribbon and 50cm³ of Copper Sulphate Solution into a polystyrene cup until I find a reaction. =============================================================== Prediction ========== The magnesium will displace the copper
Reaction Between Hydrochloric Acid and Sodium Thiosulphate Introduction I will be conducting two experiments to determine how two factors affect the rate of reaction in the reaction between hydrochloric acid and sodium thiosulphate. It is a precipitation experiment. The equation allows us to see how this experiment will help us find how rate of reaction changes Sodium thiosulphate + Hydrochloric acid ---- Sodium chloride + Sulphur + Sulphur dioxide + Water Na2S2O3 (aq) + 2HCl(aq)
Reactions to Industrialism in Frankenstein and The Communist Manifesto The radical changes of the nineteenth century were unlike any the world had seen before. A sense of these changes were felt by all in many aspects; not just politically, but in social and cultural means as well. When Mary Shelley's Frankenstein was published in 1831, it was clear that many general elements of the romantic era were well reflected. Similarly, Karl Marx and Frederick Engels' The Communist Manifesto appeared
Reactions to Patriarchal Oppression by Jane Eyre and Bertha Mason Missing Works Cited Jane Eyre and Bertha Mason are both oppressed by the British patriarchal system were men are the makers, interpreters, and enforcers of social and political rules. However, these two women differ greatly in the ways that they accept and cope with the reality of their place in society, and it is these differences that ultimately determine their fate. Jane Eyre follows the rules. Although she initially revolts
Reactions to Oppression in Jamaica and South Africa "Bob Marley said How long shall they kill our prophets While we stand aside and look Little did he know that eventually The enemy will stand aside and look While we slash and kill our own brothers Knowing that already they are the victims of the situation" Lucky Dube, Victims Lucky Dube is a reggae artist from South Africa singing in a fight against oppression in his country. Like Jamaica, South Africa has been oppressed
Effect of Temperature on the Rate of Reaction between Sodium Thiosulphate and Hydrochloric Acid Investigation Chemical reactions are used in our everyday life, they literally keep us alive. They are used in food, respiration and everywhere else in the environment. A chemical reaction mainly occurs when reactants react together to produce a new product. The speed at which this reaction takes place is called the rate of reaction. The product produced has a number of particles in the solution that
An investigation of neutralization reactions Aim Question : What is the effect of changing the concentration of an alkali, on the volume of acid needed to neutralise it, when acid is added to it? The plan is to use two acids (Hydrochloric & Sulphuric) and one alkali (Sodium Hydroxide). The reason I need to use two acids is; because the question applies to all acids and alkalis and to just use one of each would not enable me to come to a general conclusion. If there had been more
Rate of Reaction - Sodium Thiosulphate and Hydrochloric Acid Aim Investigation, to find out how the rate of reaction between Sodium Thiosulphate and Hydrochloric acid is affected by changing the concentration. Introduction I must produce a piece of coursework investigating the rate of reaction, and the effect different changes have on them. The rate of reaction is the rate of loss of a reactant or the rate of development of a product during a chemical reaction. It is measured by dividing 1 by
Dostoevsky’s Notes from Undergound - Reactions to an Overdeterministic Existence Some of the works cited are missing Dostoevsky presents his Notes from Undergound as the fragmented ramblings of an unnamed narrator. On the surface, the character’s narration appears disjointed and reaches no conclusive end ing until the author intercedes to end the book. However, a close examination of the underground man’s language reveals a progression in his collected ravings. After expressing dissatisfaction
Reactions to Hooks’ Feminism is for Everybody I am not a feminist simply because I was raised in a feminist household. I am not a feminist because I am an independent, educated woman. I am not a feminist because I am a bitter female, nor because I am a “woman scorned.” I am not a feminist because I hate men, nor because I am a lesbian nor because I like to listen to the Indigo Girls. To the contrary I love men and I am not a lesbian. While I agree with hooks that “feminism is a movement to end
"We are a peculiar people," Elder Bruce R. McConkie once said (McConkie 25). The Church of Jesus Christ of Latter-day Saints is one of a few "odd" Christian religions. Many of its practices have created much persecution and political reaction, polygamy being one of these. It created much social and political persecution of the Mormons. Most of this persecution had come from anti-polygamist Christians. This is ironic because the anti-polygamists believed in the Bible, but not polygamy, one of its
Change is interdependent on other variables like size, environment, organization type and power. An organization should monitor and re-assess its change strategy as a shift in any of the variables affects its implementation and requires realignment of strategies. For effective change, progress has to be monitored and feedback should be acted upon continuously. Accepting and altering what can be noticed as a wrong strategy in the change process should be acceptable to all, however, it can only be
ask that Cronon is dealing with? In his journal, Thoreau muses upon twenty years of changes in New England’s land and beasts. He lists the differences in plants and animals, comparing them to past accounts and descriptions. He questions if the growing human presence has resulted in “a maimed and imperfect nature.” Cronon believes that this is an important question to consider. He points out that although changes do happen in nature, it is not so easy to determine how they changed. He is also not