Identifying An Unknown Organic Compound

Identifying An Unknown Organic Compound
Through the use of Wet tests I am able to determine the likely identity of the organic unknown, I shall start with the reactions of Compound A. When Blue litmus paper is used to test compound A there is no observable change in colour. Since Blue Litmus is the test for a proton donor1 it tells me that compound A is not an acid. If compound A were an acid then the blue litmus paper would turn red. The test with acidified potassium dichromate turned out negative. This means that compound A can possibly be a tertiary alcohol. This is because if the compound were a primary alcohol an aldehyde would be formed. The aldehyde would cause the dichromate ions to change to chromium ions (a green crystalline ionic compound). If compound A were a secondary alcohol then a reaction would also take place whereby chromium ions would be formed.

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Investigating Factors that Affect the Rate of Reaction Between Calcium Carbonate and Hydrochloric Acid

Investigating Factors that Affect the Rate of Reaction Between Calcium Carbonate and Hydrochloric Acid
When calcium carbonate (CaCO3) and hydrochloric acid (HCl) are mixed we see the following reaction: Calcium carbonate + hydrochloric acid ? calcium chloride + water + carbon dioxide CaCO3 + 2 HCl ? CaCl2 + H2O + CO2 Many factors affect the rate at which this reaction occurs. The variables, which I could test, are: Surface Area: when one of the reactants is solid, the reaction can only take place at the surface of the solid. Breaking the solid into smaller pieces will increase the surface area exposed to the other reactant. This should increase the reaction rate. Concentration: An increase in concentration means there are more particles. More particles means there will be more collisions. This should increase the reaction rate. Temperature: increasing the temperature will cause the particles to move faster. When particles move faster, more collisions occur and the collisions are more violent. This should increase the reaction rate. Catalysts: catalysts are substances that change the rate of a chemical reaction without being changed in the reaction. I have decided to change the concentration of the hydrochloric acid, as we have sufficient equipment to carry out this experiment safely and accurately within a suitable period of time. prediction I predict that as the concentration of hydrochloric acid increases the rate of reaction will increase

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Underwater Acoustics

Underwater Acoustics
My Communications coursework will be on non-radio communications. My
chosen topic is underwater acoustics. The applications of underwater
acoustics and their advantages and disadvantages will be studied.

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Comparing Individuals In Organizations at Green River vs. Aberdeen

Comparing Individuals In Organizations at Green River vs. Aberdeen
In this Individual Project we will raise the discussion about Management Ability, Organizational Commitment, Job Satisfaction, and Organizational Ethics while engaging in the differences that exist between fmc Green River and Aberdeen. We will try to see if what operations are at fmc Aberdeen will and can be incorporated at fmc Green River. The next discussion of areas is can these operations work at fmc Green River the way they are functioning at fmc Aberdeen?
I found that Aberdeen and Green River had a lot of things that were different from each other. Aberdeen has only one customer, has only employed 100 people, has just a single product, just started up five years ago, it industry is defense, and is has no union. Where Green River has over 100 customers world wide, has employed 1,150, has

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The Changing Climate

The Changing Climate
1. ?Earth?s climate has always been changing; it is the rate of change that is of current concern to scientists.? With reference to Figure 1, and other evidence which you have come across, discuss the validity of this statement. Firstly, global climate change is defined as ?a change in the long-term weather patterns that characterize the regions of the world.? From Figure 1, we can see that the Earth?s climate has always been changing (at least temperature-wise), as evidenced by the large fluctuations in temperature as shown in the graph, starting from 150000 years ago. Figure 1 [image]As shown in the graph, the average global temperature dropped for around 15000 years, and then started to increase sharply for around 10000 years, after which it dropped at remained relatively constant, although it continued to fluctuate by around 1-2oC. The average temperature then dropped sharply around 80000 years ago, and then rose again, followed by another 35000 years or so of relative constant temperature.

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Exploration of Energy Resources

Exploration of Energy Resources
Energy consists of many types of categories:
Sound Energy
Heat Energy
Light Energy
Electrical Energy
Kinetic Energy
Chemical Energy
Nuclear Energy
Gravitational Potential Energy
Elastical Potential Energy

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Investigating Photosynthesis

Investigating Photosynthesis
The aim of our investigation is to find out how the amount of light, that is light intensity, affects the rate of photosynthesis. Background information: What variables are involved. Dependant variable: Light intensity, distance, lamp and plant. Key factors to control: ? temperature ? number of leaves ? presence of chlorophyll ? time Preliminary practical work: [image]Carbon dioxide + water glucose + oxygen Light and chlorophyll [image] 6CO + 6H O C H O + 60 ========= ? Photosynthesis is when green plants produce glucose from sunlight. ? Light energy, water, chlorophyll, glucose and carbon dioxide are needed for photosynthesis to take place. ? Sunlight, chlorophyll, water and carbon dioxide are needed during photosynthesis. ? Sodium hydrogencarbonate increases the levels of carbon dioxide in a plant. ? It does matter if all the leaves are of different sizes because then the experiment will not be fair and therefore results will not be reliable. ? We can assume that each leaf is approximately the same size because there is no need to measure each leaf exactly, an estimate would be more preferable within the width of the leaf. Each leaf should have similar sizes to be approximate

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Investigating Osmosis In A Potato

Investigating Osmosis In A Potato
Introduction: "Osmosis is typically defines as the flow of one constituent of a solution through a membrane while the other constituents are blocked and unable to pass through the membrane. Experimentation is necessary to determine which membranes permit selective flow, or osmosis, because not all membranes act in this way. Many membranes allow all or none of the constituents of a solution to pass through; only a few allow a selective flow. In a classic demonstration of osmosis, a vertical tube containing a solution of sugar, with its lower end closed off by a semi-permeable membrane, is placed in a container of water. As the water passes through the membrane into the tube, the level of sugar solution in the tube visibly rises. A semi-permeable membrane that may be used for such a demonstration is the membrane found just inside the shell of an egg, that is, the film that keeps the white of the egg from direct contact with the shell. In this demonstration, the water moves in both directions through the membrane; the flow is greater from the vessel of pure water, however, because the concentration of water is greater there, that is, fewer dissolved substances exist in this solution than in the sugar solution.

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The Features and Processes Associated with Sea Level Change

The Features and Processes Associated with Sea Level Change
Water is the most powerful, destructive and creative force in the world in which we live. Over 60% of the total area of the earth in covered by water and as such has the largest effect on the shape of the land and the carving of new features. The changes that come about through the movement and change of state of water are various and encapsulate a multitude of factors. In this essay I am going to focus upon landforms that have been altered or changed through the process of water. In particular costal landforms. Costal landforms can be affected by three factors. Sea level change, land movement and glacial movement. Thee these factors can be indexed into two categories Isostatic and Eusostatic. Eusostatic movements are the global effects such as sea level change and the creation of gondwana and other such global continental movements. Isostatic movements are on a local scale and are land based or to do with ice caps. Although this is a certain crossover point here with global warming and large scale tectonic movements that can affect the world on both a global and local scale and therefore cross the boundaries between Isostatic and eusostatic.

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Tourism in Hong Kong

Tourism in Hong Kong
ntroduction: tourism is one of the major economic pillars of Hong Kong: the most popular city destination in Asia. The Hong Kong government has spent a big sum of money to strengthen the tourism image of Hong Kong. Methodology: In this coursework, I will investigate whether tourism is indeed a major economic pillar of Hong Kong and if Hong Kong needs tourism. I will use many resources such as: books (Hong Kong Year Book), internet (mostly information and data that was published by the Hong Kong Tourism Board, Hong Kong Tourism Commission), questionnaire (conduct a questionnaire in popular tourism districts to gather information from tourists and locals). [image] Introduction to Hong KongTourism Board: The Hong Kong Tourism Board (hktb) is established to promote Hong Kongas a tourist destination. If Hong Kong attracts a lot of tourist, the big spending of the tourists will contribute to the Hong Kong economy. hktb often uses new strategies to attract tourist to Hong Kong, especially in those sectors that can bring the highest yield in terms of visitor spending.

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