The Titration of a Basic Solution of Unknown Molarity with a Standard Hydrochloric Acid Solution Abstract The aim of the experiment was how to determine the molarity of a solution. My hypothesis was if I have to determine the molarity of a NaOH solution‚ then I would have to use a standard solution of HCl solution because I would need to neutralize each other to determine the concentration of the solution of NaOH. The method that I used for this experiment was titration. Titration helped
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Chapter 17—Alcohols and Phenols SHORT ANSWER Drawing Instructions: Draw structures corresponding to each of the given names. 1. Draw: cis-4-tert-butylcyclohexanol ANS: 2. Draw: 3-methyl-2-buten-1-ol ANS: 3. Draw: 2-phenyl-2-propanol ANS: 4. Draw: glycerol ANS: 5. Draw: 2‚ 4‚ 6-trinitrophenol ANS: IUPAC Naming Instructions: Provide proper IUPAC names. 6. Name: ANS: (E)-2-ethylbut-2-en-1-ol 7. Name: HOCH2CH2OH ANS:
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Kayla Adkins Forensic Chemistry Exam 2 I have been honest and observed no dishonesty. 1. In specific detail‚ describe a published procedure for the definitive identification of Heroin utilizing gas chromatography-mass spectroscopy (GCMS). Heroin is a white crystalline powder with no odor and a bitter taste. It is a derivative of morphine in that the –OH (hydroxyl group) is replaced by an acetyl group‚ -OCOCH3 and has a molecular formula is C21H23NO5 with a molecular weight of 369.42
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neutralization reactions and others. Transfer of heat is a major theme of thermodynamics‚ the science of heat exchange (or energy exchange). Q: Why it is important to know the quantity of heat (energy) involved in a chemical reaction? Answer: when chemical reaction takes place the rearrangement of atoms takes place and some bonds have to be broken (energy is needed) and new bonds form (energy is released) we can learn about the strength of the bonds‚ we can also predict whether the reaction
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Assessment 7 Question 1 of 12 The equilibrium constant Kp for the reaction CO(g) + Cl2(g) ↔ COCl2(g) is 5.62 x 1035 at 25°C. Calculate ΔGf° for COCl2 at 25°C. (ΔGf° for CO(g) = –137.3 kJ/mol at 25°C) PRIVATE "<INPUT TYPE=\"radio\" NAME=\"null_12_0\" VALUE=\"3\" DISABLED>" MACROBUTTON HTMLDirect A. –66.7 kJ/mol PRIVATE "<INPUT TYPE=\"radio\" NAME=\"null_12_0\" VALUE=\"1\" DISABLED>" MACROBUTTON HTMLDirect B. 188 kJ/mol PRIVATE "<INPUT TYPE=\"radio\" NAME=\"null_12_0\"
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Periodically Puzzling Here are some questions about the elements‚ their properties‚ and periodicity. In each case‚ the correct answer is the name of an element (one of the two given). Write the answer in the appropriate space at the right‚ placing the first letter in the first blank. There are more than enough blanks to fit either element name‚ so the number of letters in the name cannot be used as a clue. When the puzzle is complete‚ the Periodic Law will be displayed in the highlighted column
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The theory of personal space proposes that you and I feel uncomfortable when others get too close in certain situations. This discomfort can‚ says the theory‚ be measured by increased heart rate‚ blood pressure or skin perspiration. The research problem is that to measure these things we have to hook a subject up to some device‚ and they thus know they are being studied. Their behavior might not be natural. To test the theory and solve this problem‚ the following was done: A study by Middlemist
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The local media‚ especially the local dailies‚ have been replete with reports of snatch thefts. The barrage of media reports has caused more than a sense of anxiety‚ it has caused fear and panic among residents. Recently‚ there has been a spate of snatch thefts in our area. Snatch thefts tend to escalate during festive seasons and holidays. Hotspots of snatch thefts are quiet and deserted areas such as residential areas‚ by the roadside‚ in lifts and around the bank. Snatch thieves choose their
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TUTORIAL 8 & 9 Solutions (Company Accounts (Part 2)) Q1. 7% Redeemable PS [300000*80%] 240‚000 Premium on redemption [240000*0.2] 48‚000 Bank [240000*1.2] 288‚000 Share Premium 48‚000 Premium on redemption 48‚000 Retained Earnings 240‚000 Capital redemption reserve 240‚000 Q2. Gembira Bhd Statement of Comprehensive Income for the year ended 30 September 2010 RM’000 RM’000 Revenue 5‚200 Ccost of sales (W1)
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Human Physiology – Spring 2013 Chapter 12 Study Questions 1. Group 1 should become experts on the structure of a sarcomere. 2. Group 2 should become experts on the sliding filament theory. 3. Group 3 should become experts on the contractile cycle of skeletal muscle. 4. Group 4 should become experts on excitation-contraction coupling. 5. Group 5 should become experts on summation and tetanus. 6. Group 6 should become experts on smooth muscle contraction. 7. What are
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