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Sodium Bicarbonate Sulfuric Acid
865 wordsNitroglycerin (C 3 H 5 N 3 O 9) Nitroglycerin is one of the most sensitive explosives ever to be commercially produced. It is a very dense liquid, and is sensitive to heat, impact, and many organic materials. Although it is not water soluble, it will dissolve in 4 parts of pure ethyl alcohol. Heat of Combustion: 1580 cal / g Products of Explosion: Carbon Dioxide, Water, Nitrogen, Oxygen Human Toxicity: Highly toxic vasodilator, avoid skin contact! Although it is possible to make it safely, it is...
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Evaporating Dish Aluminum Foil
1,928 wordsPurpose: To conduct experiments and to determine whether they are physical or chemical changes Before we conduct these experiments there are some topics that we must discuss. As I stated in the purpose, in this lab we are going to be looking at some experiments, and we have to determine whether they are a cause of chemical or physical changes. The purpose for all the labs that we will be doing will be the same. During a chemical change a new substance is formed, it is irreversible, and it is usu...
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Graduated Cylinder Sodium Chloride
1,507 wordsObjective: To practice the various techniques of measuring masses using the lab balance. Then to gain the experience in the techniques of handling lab equipment. 1. Check your balance to make sure that the pointer is calibrated or zeroed. If necessary, consult your teacher for an adjustment. 2. Place a penny on the balance pan. Move the riders until the pointer is balanced. Record the mass of the penny. 3. Repeat step two for objects listed below. -Measure and record the mass of a watch glass. -...
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Observations Mass Volume Egg Volume Of Egg Volume Water
856 wordsWe recently did an experiment on osmosis and it really helped me understand diffusion and osmosis much better. This experiment was really easy. We put the egg into three different types of liquids, vinegar, corn syrup, and water. My hypotheses for the egg in the vinegar was that the shell would be removed and dissolve. For the corn syrup I thought that the whole egg would break apart including the including the yolk. My hypothesis for the water was that nothing will happen to the egg. 1. Get egg...
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Cooling Rate Of Coffee
1,679 wordsExperiments to Determine the Cooling Rate of Coffee, when Milk should be Added and what Container should be Used The aim of the first experiment was to find out and record the cooling rate of coffee under three different conditions and thus showing when milk should be added assuming you have a phone call. The three different conditions were chosen because these were the most likely situations encounter by someone who is making a cup of coffee. We used Tain instruments to accurately calculate the...
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Concentration And Reaction Rate
1,776 wordster> How concentration affects reaction rate. The aim of this investigation is to see how the concentration of a reactant in ratio to the reactor affects the rate of a reaction. When hydrochloric acid and Thiosulphate react together sulphur is liberated this means that as the reaction goes on the solution will become yellow and will change from being transparent to translucent to opaque. The sulphur is formed as a solid but not in the usual precipitation way. Na 2 + S 2 + 2 HCL 2 NaCl+...
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Evaporating Dish Aluminum Foil
2,222 wordsPurpose: To conduct experiments and to determine whether they are physical or chemical changes Pre-Lab Notes: Before we conduct these experiments there are some topics that we must discuss. As I stated in the purpose, in this lab we are going to be looking at some experiments, and we have to determine whether they are a cause of chemical or physical changes. The purpose for all the labs that we will be doing will be the same. During a chemical change a new substance is formed, it is irreversible...
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Amount Of Energy Oxygen Atoms
1,983 wordsPlanning In this investigation I will be burning alcohols to heat up a beaker of water. I will be burning five alcohols, methanol, ethanol, propanol, butanol and pentanol. The aim is to find out how much energy is produced when burning these alcohols. An alcohol is a series of organic homologous compounds, with the general formula Cn H n + 1 OH´ . Alcohols react with oxygen in the air to form water and carbon dioxide. The reaction that is involved in burning alcohols is exothermic because ...
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Rate Of Reaction Bunsen Burner
2,301 wordsFor this investigation I am going to investigate the effect of the concentration of an enzyme, in this case Amylase, on the time taken for the enzyme to fully breakdown the substrate, which in this case is starch. The reason why these two enzymes have to be used is because each enzyme is designed specifically to break down only one substrate as each enzyme is made of a protein that causes it to be a specific shape, in this case the enzyme Amylase can only break down starch to dextrin. I am going...
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Carbon Dioxide Measuring Cylinder
3,019 wordsAim 1 To find Fermentation Aims Aim 1 To find out what factors affect how quickly bread dough rises. There are a number of factors that affect how quickly bread dough rises. These are: · Amount of sugar-if the amount of sugar is increased, the rate of reaction will increase. Adding a higher concentration of sugar will increase the sugar particles in a given space. As the mixture is heated, the sugar particles will begin to move. Due to a lack of space, this would result in collisions. Thu...
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Rate Of Reaction Hydrochloric Acid
1,681 wordsInvestigating The Rate Of Reaction Between Sodium Investigating The Rate Of Reaction Between Sodium Thiosulphate And Hydrochloric Acid Investigating the rate of reaction between Sodium Thiosulphate and Hydrochloric Acid Diagram Aim: We did 4 experiments to find out how the rate of reaction changes with differing concentrations of Sodium Thiosulphate, Hydrochloric Acid and water. As an inert and stable liquid, water was used to alter concentration of Sodium Thiosulphate without changing the end a...
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Sulfuric Acid Nitric Acid
11,285 wordsPreparation And Mechanisms Of High And Low Preparation And Mechanisms Of High And Low Grade Explosives EXPLOSIVE FORMULAS Once again, persons reading this material should never attempt to produce any of the explosives described here. It is illegal and extremely dangerous to do so. Loss of life and limbs could easily result from a failed (or successful) attempt to produce any explosives or hazardous chemicals. These procedures are correct, however many of the methods given here are usually scaled...
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Measuring Cylinder Reaction Rate
3,430 wordsHow concentration affects reaction rate. The aim of this investigation is to see how the concentration of a reactant in ratio to the reactor affects the rate of a reaction. When hydrochloric acid and Thiosulphate react together sulphur is liberated this means that as the reaction goes on the solution will become yellow and will change from being transparent to translucent to opaque. The sulphur is formed as a solid but not in the usual precipitation way. Na 2 + S 2 + 2 HCL 2 NaCl+SO 2 + S 2 +H 2...
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Sodium Hydroxide Hydrochloric Acid
600 wordsBack titration: Work to be done: To find out the atomic mass of a substance using a method called back titration. Chemicals and apparatus: Magnesium Beaker Glass Burette Distilled water Methyl red 0. 5 M sodium hydroxide, NaOH 1. 0 M hydrochloric acid, HCl Lab-work: The name of the experiment explains the way of doing it quite well. You do measure how much you have of the substances and then do the titration. My mission was to find out the atomic mass of magnesium. I took a sample and weighted i...
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Sun And Moon Aubrey Holes
2,656 wordsBehind every great structure in the world, there are the people who made them, and who took the time and effort to design them. Those who made Stonehenge succeeded in creating an incredibly complex and mysterious structure that lived on long after its creators were dead. The many aspects of Stonehenge and the processes by which it was built reveal much about the intelligence and sophistication of the civilizations that designed and built the monument, despite the fact that it is difficult to fin...
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Aubrey Holes Salisbury Plain
5,149 wordsStonehenge, one of the great Seven Wonders of the World, but what do we really know about it. What was its purpose, how was it built and by whom. Many different answers come up when asking the question What is Stonehenge? Behind every great structure in the world, there are the people who made them, and who took the time and effort to design them. Those who made Stonehenge succeeded in creating an incredibly complex and mysterious structure that lived on long after its creators were dead. The ma...
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