| 41. | Bio Lab 14
Introduction We have set up an experiment to investigate the effects of gibberelic acid on two different types of pea plants, Alaska and Little Marvel. We decided to see the effects of gibberelic acid would have on the growth of each of the two different plants. We set the plants up and let them gro...
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| 42. | aspirin
Aspirin was invented in the late 1890s by German chemist Felix Hoffman who was seeking to ease his father’s arthritis pain (Big Bathroom Reader,2000). In the over 100 years since then, aspirin, or as it is known to chemists, acetylsalicylic acid, ASA for short, has become the world’s most widely use...
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| 43. | Hydrochloric Acid and Magnesium
Hydrochloric Acid and Magnesium
Aim
The aim of this investigation is to find out the effect of concentration of acid, in the reaction between dilute hydrochloric caid and magnesium ribbon. ... g (the formation of silver chloride precipitate when silver nitrate and hydrochloric acid solutions are m...
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| 44. | hydrochloric acid concetrations 1245
Planning I have decided to investigate the effect of different concentrations of hydrochloric acid on marble chips. I want to see how long it takes for 30cm of carbon dioxide to be given off once the acid and marble chips start reacting. ... In this investigation I will be using the following appar...
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| 45. | aspirin synthesis
... The present experiment will be the synthesis of a familiar organic compound called aspirin. ... Aspirin, the most widely used drug in the world, has an interesting history. ...
Aspirin, acetylsalicylic acid, can be easily made from salicylic acid by an organic reaction know as esterificati...
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| 46. | Rate of reaction
Aim
I am going to investigate the effect of concentration on the reaction between hydrochloric acid and calcium carbonate. I will also investigate the effect the variables will have on the rates of reaction. ... Concentration of the hydrochloric acid- the greater the concentration of the hydroc...
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| 47. | RAINFOREST
DEFORESTATION OF THE RAIN FORESTS _ INTRODUCTION Rain Forests are areas of the earth's surface that receive a high amount of rainfall throughout the year. All The Rain Forests are located in the proximately of the earth's equator and the major Rain Forests in the world are located in South America, ...
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| 48. | What factors affect the rate of reaction between magnesium ribbon and hydrochloric acid GCSE CHEMISTRY COURSEWORK
What factors affect the rate of reaction between magnesium ribbon and hydrochloric acid?
GCSE CHEMISTRY COURSEWORK
This chemistry coursework requires an investigation to see how long it takes for magnesium ribbon to be eaten away by hydrochloric acid.
Before starting the investigation, I decided ...
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| 49. | Investigate how the concentration of acid used affects the rate of a chemical reaction
Background: The speed of a reaction is known as a reaction rate. There are many factors that may affect the reaction rate, including:
Heat. When heat is introduced the atoms gain more kinetic energy and move at a faster rate and therefore collisions happen more often and more violently. ... Th...
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| 50. | Krebs cycle as the hub of the metabolic wheel
The citric acid cycle has been described as the “hub of the metabolic wheel”. Discuss the roles of the citric acid cycle in the oxidation of various fuel molecules and the provision of carbon skeletons for biosynthesis:
Respiration is the process by which energy in the form of ATP is obtained fro...
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| 51. | Fischer Esterification reactions
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Introduction:
Chapter seven of our organic chemistry lab manual deals with finding and calculating the equilibrium constant of a Fischer esterification reaction. Fischer esterification is an acid-catalyzed reaction involving any alcohol reacting with a carboxylic acid to produce ester...
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| 52. | rates or reaction
... This will tell us whether the concentration of acid makes a difference to the rate of reaction. ... Rates of reaction between magnesium and hydrochloric acid when using different concentrations. One way of making the reaction between magnesium and hydrochloric acid more effective or less effe...
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| 53. | Effect Of Temperature On The Rate Of A Reaction Between Hydrochloric Acid And Calcium Carbonate
Effect Of Temperature On The Rate Of A Reaction Between Hydrochloric Acid And Calcium Carbonate
Plan
I am going to investigate the effect of temperature on the rate of a reaction between dilute hydrochloric acid and calcium carbonate.
I will do this by heating dilute acid to a certain tem...
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| 54. | role of the citric acid cycle
Jonathan Shepherd 1/1/04
The role of the citric acid cycle
The citric acid cycle has been described as ¡§the hub of the metabolic wheel¡¨. Discuss the roles of the citric acid cycle in the oxidation of various fuel molecules and the provision of carbon skeletons for biosynthesis.
...
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| 55. | Salters Chemistry Individual Investigation Determining the Difference in The pH of Different Fruit Juices
Salters Chemistry: Individual Investigation, Determining the Difference in The pH of Different Fruit Juices.
I have decided to investigate the differing pH levels in different fruit juices. Fruit Juice is usually slightly acidic. From this experiment I will be able to see how much vitamin C th...
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| 56. | Fatty Acid Synthesis and Degredation
Although the synthesis occurs through similar intermediates with oxidation, it has different electron carriers, carboxyl group activation, stereochemistry and cellular location. Fatty Acid oxidation happens by the oxidative removal of the two carbon Acetyl-CoA. ... Fatty acid synthesis occurs in th...
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| 57. | Whatever
The rain forest is a tall forest of trees, and is located in in the part of the world which gets plentiful rainfall and warmth (the perfect growing condition). Therefore many of the rain forests are near or on the equator. Only about nine percent of the earth is covered by tropical rain forests. How...
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| 58. | Carbonic Acid and Aluminum Hydroxide Base
The early Acid Base theories of Antoine Lavoisier and Humphrey Davy were among the first attempts to clarify acids and bases. ... Lavoisier even created the word oxygen, which means "acid maker. ... Davy, on the other hand, stated that hydrogen confers the generic property of acid. However, th...
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| 59. | RATE OF REACTION OF MAGNESIUM RIBBON WITH HYDROLIC ACID CONCLUSION
I can conclude that if you double the concentration of the acid the reaction rate would
also double, this is because the ions are closer together in a concentrated solution. ... The more often they collide, the
higher the chance of a reaction between the magnesium and the hydrochloric acid. Also
...
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| 60. | investigating how temperature affects the rate of reaction between Calcium carbonate and hydrochloric acid
Background knowledge
Calcium carbonate + hydrochloric acid calcium chloride + carbon dioxide + water
When hydrochloric acid is added to calcium carbonate it fizzes until it has all been turned into calcium chloride and water. ...
Variables
These are the factors which affect the...
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