COLLIGATIVE PROPERTIES 1. Calculate the vapor pressure when 10.o mL glycerol (C3H8O3) is added to 500.0 mL water at 500C. At this temperature the vapor pressure of pure water is 92.5 torr and its density is 0.988 g/mL. Density of glycerol is 1.26 g/mL. 2. Calculate the boiling point and freezing point of the solution if 1.00 kg of ethylene glycol (C2H6O2) is added to a car radiator which contains 4450 g water. a. Kb of water = 0.512 oC/m at normal boiling point of 100oC b. Kf of water
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Chapter 13 AC MEASUREMENT This chapter explains rectification for measurement and rectifying instruments. Knowledge of the circuit principles will help you use these instruments properly and measurements alternating current correctly. One of the most common and economical methods for measuring alternating currents is to rectify these currents and read the resultant DC on an analog or digital volt-ohm meter (VOM). You need to take many considerations into account when using rectification: what
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GRADE 11 CHEMISTRY (30S) Final Practice Examination Answer Key GRADE 11 CHEMISTRY (30S) Final Practice Examination Answer Key IInstructions The final examination will be weighted as follows Modules 1–3 Modules 4–6 The format of the examination will be as follows: Part A: Fill-in-the-Blanks Part B: Multiple Choice Part C: Short Answer Total Marks Include units with all answers as required. Useful Information You will need the following in order to complete this examination: n n n n 15–20% 80–85%
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Fourth Edition‚ last update June 29‚ 2002 2 Lessons In Electric Circuits‚ Volume II – AC By Tony R. Kuphaldt Fourth Edition‚ last update June 29‚ 2002 i c 2000-2002‚ Tony R. Kuphaldt This book is published under the terms and conditions of the Design Science License. These terms and conditions allow for free copying‚ distribution‚ and/or modification of this document by the general public. The full Design Science License text is included in the last chapter. As an open and collaboratively
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Alternating Current Theory - J R Lucas An alternating waveform is a periodic waveform which alternate between positive and negative values. Unlike direct waveforms‚ they cannot be characterised by one magnitude as their amplitude is continuously varying from instant to instant. Thus various forms of magnitudes are defined for such waveforms. The advantage of the alternating waveform for electric power is that it can be stepped up or stepped down in potential easily for transmission and utilisation
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Materials and Methods The experiment is carried out according to the procedures described in Experiment (1): Investigation of the suitability of indicators and instrumental detection of equivalence points in acid-base titration under the General Chemistry module Results Part 1: Suitability of Indicators A. Strong acid-weak base titration Acid: HCl (aq) Base: NH4OH (aq) Reaction: HC1(aq) + NH4OH(aq) → NH4Cl(aq) + H2O(l) Indicator: Phenolphthalein |
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EXAM III CHEM 2211 November 3‚ 2010 NAME: ____________________________________________ Please be certain to answer all questions. Partial credit cannot be given the questions left blank. 1. Give the IUPAC name for the following compound. A) (Z)-2‚3‚6-trimethyl-2-heptene B) (Z)-2‚3‚6-trimethyl-3-heptene C) (E)-2‚3‚6-trimethyl-3-heptene D) (E)-2‚3‚6-trimethyl-2-heptene E) (E)-2‚4‚6-trimethyl-3-heptene 2. Which of the following statements is (are) true about compound A?
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correctly indicate an alternating current. There are‚ however‚ four basic types of meter movement that will indicate ac values:- Thermocouple Hot wire Electrodynamometer Iron-vane Electrodynamic ammeters An electrodynamic meter uses an electromagnet instead of the permanent magnet. This instrument can respond to both alternating and direct current and also indicates true RMS for AC. Principle of working The operation is basically based on the mechanical interaction between two conductors
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Intra-abdominal hypertension (IAH) and abdominal compartment syndrome (ACS) are common and connected with significant morbidity and mortality among critically ill adults (1-4). The World Society of abdominal compartment syndrome (WSACS) accord report in 2004 indicated that in the critically ill patient‚ the IAP is frequently elevated above patient’s normal baseline which is roughly 5 to 7 mmHg (1‚3). Increased IAP or Intra-abdominal hypertension (IAH) described as a sustained or repeated pathological
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programs (moslty MatLab and C) and C) Mechatronics I Mechatronics I In course you will learn: y • About AC Voltage‚ Inductors and Capacitors • About diodes‚ filters and regulators. • About Bipolar Junction Transistors (BJTs) • How to troubleshoot circuits in the laboratory Mark Breakdown Mark Breakdown You can find this information in the Course Outline in Blackboard. • • • • • Lab Exam (Hands‐on) – 20 % Labs – 20 % L b 20 % Quizzes/home exercises – 15 % Midterm Test 20 % Midterm Test – 20
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