Title: ACID BASE TITRATION. Objectives: 1. To determine the concentration of acid using titration. 2. Skills of titration techniques. Apparatus: 1. 250 volumetric flask 2. 10mL measuring cylinder 3. 25mL pipette 4. 50mL burette 5. 250mL beaker 6. 150mL conical flask 7. Retord stand 8. White tile 9. Stopwatch 10. Pipette bulb Chemicals: 1. HCl solution 2. 0.1M NaOH solution 3. H2SO4 solution 4. Distilled water 5. phenolphthalein Introduction
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Acid Rain and its Chemistry Acid rain is a type of pollution that is becoming a major threat to our planet and is need of attention. Acid rain has significantly increased ever since the industrial revolution‚ and now around the world‚ countries like Russia‚ China‚ and those in Europe are facing increasing levels of acidity in their rain. Not only is it becoming more acidic but it is also spreading by the pumping of sulfuric gasses deeper into the atmosphere from of the use of taller smokestacks
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The Salem Witch Trials of 1692 The Salem witch trials were a series of hearings and prosecutions of people accused of witch craft in colonial Massachusetts. The trials started in Salem in 1692 and after that they spread all over the world. Most towns thought that there was witch craft going on. The witch trials are an important historical event as it resulted in the deaths of dozens of innocent people.There are many different stories as to how witchcraft began‚some say it started in Salem .Other
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SALEM WITCH TRIALS! ♥ From June through September of 1692‚ nineteen people convicted of practicing witchcraft in Massachusetts. The Salem Witch Trials took place only in America‚ but the idea of witches has existed in many parts of the world. In Europe witches were believed to be anti-Christian‚ and to have sold his or her soul to the devil in order to obtain magical abilities‚ usually to harm others. However‚ witches in Africa and the West Indies involved concepts other than the devil. From the
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Neutralization reactions involve the reaction of an acid and a base to produce a salt (ionic compound) and water. Acid + Base ( Salt + Water □ In this lab‚ sulfamic acid (a weak acid which contains one acidic hydrogen) will be used: H2NSO2OH(aq) + NaOH(aq) ( NaOSO2NH2(aq) + H2O(l) (Net Equation: H+(aq) + OH-(aq) ( H2O(l)) □ Titration is a process of neutralization □ Titration is commonly used to determine the concentration of an acid or base
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non-essential amino acids‚ amino acid remodeling‚ and conversion of non-amino acid carbon skeletons into amino acids and other derivatives that contain nitrogen. However‚ the liver is the major site of nitrogen metabolism in the body. In times of dietary surplus‚ the potentially toxic nitrogen of amino acids is eliminated via transaminations‚ deamination‚ and urea formation; the carbon skeletons are generally conserved as carbohydrate‚ via gluconeogenesis‚ or as fatty acid via fatty acid synthesis pathways
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people are still wondering why 19 people died as a result of these trials. The events leading up to the Salem Witch Trials and the events that took place during and after the trial are all still looked at today by historians. Many historians interpret the Salem Witch Trials in different ways depending on their opinions. There were also many different people involved in the Salem Witch Trials. Some historians ask questions like why did so many people have to die during this time? Also what was the
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The Salem witch trials scared many people during its time. During this time people accused each other of being witches. Many of the accused were killed because they would not admit to being a witch. The causes of the Salem witch trials were town division‚ lying girls‚ and jealousy. Town division helped spark the horrible events of the Salem witch trials. The town could be divided by race‚ social status‚ or wealth. Document E shows us that the accusers are on one side of the town and the accused
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Character Analysis in The Lion‚ the Witch‚ and the Wardrobe The Chronicles of Narnia: The Lion‚ the Witch‚ and the Wardrobe is filled with a variety of memorable characters‚ who‚ with their individuality and unique characteristics‚ help tell the tale of a life changing journey in a magical land. Each of these characters--from the Pevensie children who take audiences along as they discover the mysterious world of Narnia‚ to the many incredible creatures they meet throughout their adventure--have
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and your thesis statement. You should complete this assignment and submit it to your teacher when you finish the Develop an Outline lesson in this unit. (5 points) 1. Write a title for your paper that clearly states the topic. The Salem Witch Trials (25 points) 2. Write your thesis statement. Your thesis should state a fact about history and state your idea about the fact. The events that took place in Salem in 1692 are a part of a greater pattern throughout our history to persecute
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