Experiment 3: Cryoscopic Determination of Molecular Weight Aim: The primary objective of the experiment is to calculate the total molecular mass of the compound benzoic acid in a predetermined amount of cyclohexane. Introduction: One of the key concepts in this experiment is the term freezing point depression. The definition of this phrase is that when a solute is dissolved into a solvent‚ their collective boiling point will be less than that of the original boiling point of the solvent. This incidentally
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5.00 / 5.00 Question Explanation Basics of compounding; mechanics. Question 2 (5 points) Gloria is 35 and trying to plan for retirement. She has put a budget together and plans to save $4‚800 per year‚ starting at the end of this year‚ in a retirement fund until she is 65. Assume that she can make 7% on her account. How much will she have for retirement at age 65? Your Answer Score Explanation 453412 5.00 Correct. You know how to calculate the FV of an annuity. Total 5.00 / 5.00
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Aila Pena Dr. Schuetze-Coburn Contemporary Composition‚ Period 5 March 4‚ 2013 Civil Disobedience: The cost of change More than 40‚000 strong activists from the Sierra Club protested at the White House to reject the Keystone XL Pipeline proposal. They protested because they the extraction of tar sand oil and moving it from Canada to Texas will pollute the groundwater in the surface (Hammel). Civil disobedience is “the active‚ professed refusal to obey certain laws‚ demands‚ and commands of a government
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Keystone XL will be the first step to isolating ourselves from depending on outside threats for resources. Others believe that oil pipelines have the ability to contaminate the world‚ not only through water and climate‚ but also through the economy. The strength of crude oil companies needs to be weakened by informing the public on what really goes on behind the scenes‚ what happens to towns that have oil pipelines running through them‚ and why protesters were so frantic to stop the Keystone XL Pipeline
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favourable effects of doxazosin extended-release (XL) and doxazosin standard on the sexual health of patients with comorbid benign prostatic hyperplasia (BPH) and erectile dysfunction (ED)‚ augmenting a previous study of 680 patients with symptomatic BPH. RESULTS Of 680 patients randomized into the trial‚ 237 (35%) had ED at baseline; in these patients there were statistically and clinically significant improvements in each of the five IIEF domains with XL and standard doxazosin (P £ 0.0019)‚ with the
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Arabia’s oil. He believes that some environmental scientists see tapping the oil sands as a disastrous tipping point for global warming. His perspective is that we seek to reduce our dependency on fossil fuels. Koening‚ Brian. “Approving The Keystone XL Pipeline.” New American. 27 .20 12 Mar 2011: 15-18. The author in this newspaper article gives more of an opposition to my other sources. He is trying to persuade people into approving the pipeline. Koening says pipelines do occasionally leak but
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the circuit impedance shown in Figure 11.39b. IL= Vs/XL= 4V/38Ω= 0.10526 x 10^-3= 105.26mA IR= Vs/R= 4V/240Ω= 0.01666 x 10^-3= 16.67mA IT= √ IL^2 + IR^2= √ 105.26mA^2 + 16.67mA^2= 0.10657 x 10^-3= 106.57mA θ= tan^-1(-IL/IR)=
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The Reluctant Receptionist Why was it important to be specific when describing job duties? The importance of being specific when describing job duties is very important. Having a well effectively developed employee job description is a communication tool between the employee and employer and it can determine the success between the employee and employer. Having a poorly written job description can add confusion to the workplace‚ also a lack of communication from the company. People working
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Wolf Peak International: Failure and success in application software for the small to medium enterprise 1) What problems occurred when Wolf Peak upgraded from QuickBooks to a new accounting software package? How could these problems have been avoided? For organizations it’s a very tough job to decide which and what kind of software to choose from all the available options. Use of accounting packages does helps in efficiency and effectiveness of the organization only if right kind of package
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Homework 2_1 ECET310 NOISE 1. Assume that a receiver has a first amplifier stage with a 5K input resistance‚ a gain of 300‚ an input audio signal of 20 V‚ and an operating temperature of 27oC. When the amplifier is operating with a bandwidth first of 10 MHz‚ find (a) the rms input noise levels (b) the audio output levels (c) the rms output noise levels PN = noise power in watts Tk = 27°C + 273 = 300°K a) Noise level Pn(in) = KT(k)BW = (1.38x10-23)(300°K)(10MHz) = 41.4 x 10^-15 W
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