***ANSWERS*** CP Chemistry Mole Review Practice Problems Find the mass of 0.89 mol of calcium chloride. 0.89mol x 111 g / 1 mol = 98.8 g Determine the number of moles of C5H12 that are in 362.8g of the compound. 362.8g x 1 mol / 72 g = 5.04 mol Find the mass of 0.159 mol of silicon dioxide. 0.159 mol x 60 g / 1 mol = 9.54 g You are given 12.35 g of C4H8O2. How many moles of the compound do you have? 12.35 g x 1 mol / 88 g = 0.140
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The Equilibrium Constant of an Ester Hydrolysis Reaction Julia Stanley CHM 152 LL Dr. Asmita Kane Budruk Goal of the lab: The purpose of this laboratory is to determine the equilibrium constant‚ Kc‚ for the acid-catalyzed reaction between an unknown ester and water to produce an unknown alcohol and an unknown carboxylic acid. I was using Unknown Ester #3 with a density of 0.9342 and Molar Mass of 74.08 g/mol; alcohol with density 0.7914 and Molar Mass 32.04 g/mol. Chemical
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Practical 3 ________________________________________________________________________ To find the force constant of a spring Objectives: To study the application of Hooke’s Law. To study the forces in equilibrium. To study the resolution of vector quantities. Apparatus and Materials: 1. Spring 2. Plumb-line 3. Protractor 4. Slotted masses 100g with hanger 5. Thread 6. Retort stand 7. Nail or pin Setup: 1. Set up the apparatus as shown in Figure 4-1 below. 2. Adjust the spring
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CHM1022 Lab Report 1 Rate Law of an Iodine Clock Reaction Name: Sashini Naomi Wijesekera Student ID: 23877847 Lab Partner: Zahiya Imam Lab Session: Monday 9.00am Aim The aim of the experiment is to determine the factors that affect the rate of a reaction‚ by performing the iodine clock reaction and repeating it changing different initial conditions in order to measure and compare the rate of reaction for each experiment and experimentally
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Research and Planning Offense Codes 12/3/2012 VIOLENT PERSON OFFENSES Chapter 12 - Civil Rights Chapter 90 - Motor vehicles and aircraft Chapter 127 - Officers and inmates of penal and reformatory institutions. Paroles and pardons Chapter 265 - Crimes against the person Chapter 268 - Crimes against public justice Chapter 274 - Felonies‚ accessories and attempts to commit crimes CODE 110 111 115 116 120 121 130 131 135 136 140 150 155 157 158 159 160 161 162 163 165
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Essay Prompt 2 We can only try to pay tribute by devoting our time and energy is the great search for explanations of God and what he has done. Science can be a form of praise and reverence and in that same mind it is a spiritual thing while being performed. They can work together helping some understand and experience faith in a completely different way. The first time I got a grasp of how much I like to indulge in science and religion: I was having a “civil argument” with other scientific minds
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INVESTIGATING EQUILIBRIUM EXPERIMENT Objectives 1. To recognize the macroscopic properties of three chemical systems at equilibrium. 2. To observe shifts in equilibrium concentrations as stresses are applied to the systems. 3. To explain observations by applying LeChatelier’s Principle. Materials 12 test tubes test tube rack 2 -100mL beakers beaker tongs safety glasses stand ring clamp wire gauze bunsen burner
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The Measure of a Man And in this way‚ smiling‚ nodding to the music‚ he went another mile or so and pretended that he was not already slowing down‚ that he was not going to turn back‚ that he would be able to drive on like this alone‚ and have the right answer when his wife stood before him in the doorway of his home and asked‚ Where is he? Where is your brother?(Wolff 269) What is the measure of a rich man? Is it his material possessions‚ the extent of his spirituality‚ or is it how he chooses
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American History I The Market Revolution During the late 1700’s‚ the United States was no longer a possession of Britain‚ instead it was a market for industrial goods and the world’s major source for tobacco‚ cotton‚ and other agricultural products. A labor revolution started to occur in the United States throughout the early 1800’s. There was a shift from an agricultural economy to an industrial market system. After the War of 1812‚ the domestic marketplace changed due to the strong pressure
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Evaluation of the Gas Law Constant Abstract: The result of the change in volume was approximately 22 CC or 0.00084 mol. This translates into the average for the R constant being 83.8L*atm/K*mol. The four determinations ensured that the results were accurate because more than one trial helps somewhat prevent error. Approximately 0.20g of the Mg ribbon was used for these determinations. Introduction: 1. Theory If the temperature of a gas sample was held constant‚ its volume varied inversely
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