Experiment 5 In the first part of this lab‚ the objective was to get the molar concentration of sodium hydroxide by using the secondary standard‚ sodium hydroxide solution with the primary standard‚ potassium hydrogen phthalate. With this information‚ we could create a second derivative plot‚ which can be used to obtain the exact concentration of the secondary standard‚ sodium hydroxide. Also‚ the indicator can give us these results along with the end points and with the readings from the pH meter;
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In “Generation Why?” article from The New York Review of Books‚ Zade Smith pointed out the software are changing our humanities. Facebook is providing the “weak‚ superficial connections” (650). On the social networking software‚ “Gay kids became un-gay‚ partiers took down their party photos‚ political firebrands put out their fire” (651)‚ users can hide themselves by editing their information and utilizing the privacy setting. The Generation Facebook is obsessed with “the vision of good life” (648)
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a. 2011). The following passages will discuss the reasons as to why human beings forget information‚ as well as review ways in which memory can be improved. There are number of theories and experiments that have focused on determining why we forget the information we were at one point or another able to recount. The following section will focus on highlighting a range of medical conditions as well as theories that provide reasons for why we forget. The loss of memory is commonly referred to
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Flame test: AIM: To determine which part of the salt is responsible for the characteristics in the flame. HYPOTHESIS: If we introduce a metal salt in the blue flame of the Bunsen burner‚ then the colour given off by the flame is due to the metal part of the salt. METHOD: (1) With a heat proof mat under the Bunsen burner‚ turn the gas on and light up the Bunsen burner with matches. (2) Pour enough Hydrochloric acid into a beaker. (3) Using your wire‚ dip it into the beaker containing Hydrochloric
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functional group or molecule for each of the following. (3 points) 1. COOH -OH 2. COH -OH 3. COH -OH 1. List whether each of the following substances was positive or negative for reducing sugar‚ as indicated by the Benedict’s test. (6 points) 1. corn syrup (1 point) positive 2. table sugar (1 point) positive 3. unknown 1 (1 point) negative 4. unknown 2 (1 point) negative 5. unknown 3 (1 point) positive 6. unknown 4 (1 point) positive 1
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Introduction: In liver cells‚ hydrogen peroxide is produced as a bi-product of some metabolic reactions. Hydrogen peroxide is a highly active chemical used in household products for bleaches and cleansing wounds. In a cell its build up would be highly toxic. However‚ liver cells contain an enzyme‚ catalase‚ which immediately breaks down hydrogen peroxide. It is a peroxidase and breaks up the toxic hydrogen peroxide to water and oxygen which are both nontoxic. The reaction is exothermic‚ meaning that
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Hydrogen and the Noble Gases Hydrogen is the chemical element with atomic number 1. It is represented by the symbol “H”. It is an odorless‚ nonmetallic‚ tasteless and highly explosive gas. Hydrogen is the lightest and most abundant chemical element in the universe. It forms 1- ions when combined with metals‚ and 1+ ion when combined with non-metals to form acids. Hydrogen is “the fuel of life”; without it to combine with oxygen we would not have water. Water is made of two parts hydrogen
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finish up this assignment that given to me. I would like to give my gratitude to our Chief Executive Captain Abdul Manan Mansor for giving us as his student the assignment. He gave us the chance for us doing some research and got us to get a closer relationship with the lectures and student. By doing this‚ we can ask and help each other and later will have a good relationship to each other. To my Aviation Safety and Security‚ Sir Ariff‚ I give the most gratitude and thank you for teaching and giving
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"To See What Factors Affect The Decomposition Of Hydrogen Peroxide By The Enzyme Catalase Which Is Found In The Liver" Introduction: Enzymes are biological catalysts. They speed up the chemical reactions which go on inside living things. Without them the reactions would be so slow that life would grind to a halt. Enzymes work by when a substrate molecule bumps into a molecule of the right enzyme‚ it fits into a depression on the surface of the enzyme molecule. This depression is called the
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Chapter 2 “The Primal Question: What Are We?” In book “What If: Religious Themes in Science Fiction”; the second chapter‚ “The Primal Question: What Are We?” Mike Alsford talks about science fiction as anthropology and how he has grouped the understanding of human beings into four categories: Subjects; Agents; Contingent; and Relational/Social. Alsford uses a lot of science fiction TV; Movies; and novels references to explain his conclusion as to “What Are We.” Science fiction as anthropology
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