Doctor Roger Chillingworth July 21st 1646 The minister’s health is fading. I fear that if I do not find a solution to his ailment soon that he may die‚ leaving me without a meaningful patient. Maybe it is Hester Prynne that is the problem. She is the evil influence that is taking the last little bit of life he has left. I am ashamed to think that I was even minutely involved with her many years ago. I used to be a good man but our terrible marriage corrupted me. All I have left is Mr. Dimmesdale
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high-formability steels is very low‚ less than 0.10% C‚ with up to 0.4% Mn. Typical uses are in automobile body panels‚ tin plate‚ and wire products. ASTM A217 Gr WC9 alloy Steel Composition Element requirement |C |Mn |Si |P |S |Cr |Ni |Mo |Cu |W | |Minimum |0.130 |0.50 |0.00 |0.000 |0.000 |2.00 |0.00 |0.90 |0.00 |0.00 | |Maximum |0.180 |0.70 |0.60 |0.020 |0.020 |2.50 |0.50 |1.20 |0.30 |0.10 | |Applications of WC9 alloy Used in • Casings of steam turbines‚ compressors‚ gas
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In William Bradford’s Chronicle “Of Plymouth Plantation” (1606-1646) and Iroquois’ Creation Myth “The World on the Turtle’s Back” (2012)‚ they showed that it takes guts and the confidence to become an explorer of the unknown. Can curiosity lead you to your thinking of death but changes the thinking of being the most amazing thing happened to you in life? Even with the risks of starvation‚ dehydration‚ disease‚ and possibly death‚ would you still go and explore the unknown? An explorer seeks the unknown
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point a telescope toward the heavens‚ the keen Italian observer likely spotted the faint pearl about a decade into the 17th century‚ but Galileo assumed it was a star‚ much as he had dismissed Neptune. Britain’s first Royal Astronomer‚ John Flamsteed (1646-1719)‚ appointed in 1675‚ the year the Greenwich Observatory debuted‚ saw the unidentified object in 1690. Flamsteed recorded it as "34 Tauri" in the constellation Taurus the Bull. A later Royal Astronomer‚ James Bradley (1673-1762)‚ observed Uranus
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purpose was to recover the original amount of copper after series of chemical reactions. Then returning the copper back to its original form. The copper wire originally weighted 1.0099 g‚ but after the copper was transformed into Cu(OH)2 to CuO to CuSO4 and finally into Cu‚ the mass of the recovered copper was 1.1023g; the percent yield was 109%. Since the percent yield is more than 100%‚ an error must have occurred somewhere in the lab. A possible error could have occurred due to removing the evaporating
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McGraw-Hill Companies‚ Inc. Oxidation-Reduction Reactions*Zn (s) + CuSO4 (aq) ZnSO4 (aq) + Cu (s) Zn is oxidized‚ Zn Zn2+ + 2e- Cu2+ is reduced‚ Cu2+ + 2e- Cu Zn is the reducing agent Cu2+ is the oxidizing agent Copper wire reacts with silver nitrate to form silver metal. What is the oxidizing agent in the reaction? Cu (s) + 2AgNO3 (aq) Cu(NO3)2 (aq) + 2Ag (s) Cu Cu2+ + 2e- Ag+ + 1e- Ag Ag+ is reduced‚ Ag+ is the oxidizing agentOxidation number*: The
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Chemicals Tested – Record your observations in the table below. Be as detailed as possible. Na3PO4 NaI Na2SO4 NaCl NaHCO3 Na2CO3 NaOH Co(NO3)2 Cloudy Lavender NR NR NR Cloudy Light Pink Cloudy Light Pink Cloudy Blue Cu(NO3)2 Cloudy baby blue Cloudy Rusty Yellowish-orange NR NR Cloudy Pastel Blue Cloudy Pastel Blue Almost Pastel Blue Fe(NO3)3 Cloudy Goldish-yellow Rusty Orange NR NR Yellowish-Gold Yellowish-Gold Yellowish-Gold Ba(NO3)2 Clear
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Extraction of Aluminium Aluminium ore is called bauxite. Bauxite contains aluminium oxide‚ water‚ iron oxide and other impurities. The purified dry ore‚ called alumina‚ is aluminium oxide (Al2O3). The alumina must be molten for electrolysis to work‚ since the ions are not free to move in the solid state. Unfortunately‚ alumina has a high melting point (2040 °C) and it is not practical to do electrolysis at such a high temperature. In the middle of the nineteenth century it was found that alumina
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Spectrophotometric Determination of Copper in Brass Your Name Here Partners: his/her name here Chemistry 1290-xxx Date Report is Due TA: TA’s name here Purpose: The primary purpose of this experiment was …… Another purpose of this experiment was …… Learning about this type of analysis was important in an everyday context because ... Safety Information: During this lab nitric acid will be used as an oxidizing agent and (NO2) nitrogen dioxide will form. This gas is extremely toxic‚ and should
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The University of Toledo Soil Mechanics Laboratory 1 Grain Size Distribution – Sieve Analysis Introduction The grain size distribution is a representation of the approximate distribution of soil grain sizes for a soil. The sieve analysis‚ also called mechanical method‚ measures the dry mass of soil retained on each sieve in a stack of sieves‚ where the sieve opening sizes vary from the largest to smallest going from the top to the bottom of the stack. All the soil particles retained on a particular
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