Mixture Melting Points Abstraction Determining the melting point is very significant in order to identify an unknown. In this experiment‚ measuring the melting point was done by using melting point apparatus. The melting point of the unknown sample #10 was 111.5˚C. There were two possible compounds which were dibenzoyl ethylene and o-Toluic acid because their melting points were 111.2˚C and 109.8˚C when each compound was mixed with the unknown. Therefore‚ the unknown #10 was dibenzoyl ethylene
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without any symbols (including $‚ %‚ commas‚ etc.). Enter all dollars without decimals and all interest rates with up to two decimals. Read the syllabus for examples. The points for each question are listed in parentheses at the start of the question‚ and the total points for the entire assignment adds up to 100. Question 1 (5 points) Qin deposits his first paycheck in the bank. The annual interest rate is 12%‚ but interest is compounded quarterly. The EAR is: Your Answer | | Score | Explanation
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Airline SABRE system‚ which became operational in 1960. Designed to process up to 83‚000 transactions a day‚ the system ran on two IBM 7090 computers. SABRE was migrated to IBM System/360 computers in 1972‚ and became an IBM product first as Airline control Program (ACP) and later as Transaction Processing Facility (TPF). In addition to airlines TPF is used by large banks‚ credit card companies‚ and hotel chains. The Hewlett-Packard NonStop system (formerly Tandem NonStop was a hardware and software
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into the first main point of the body. A connective is not required here but may be used if desired. For information on connectives‚ review pages 177-178 of your textbook. Skip a space above and below connectives.) BODY I. A single complete sentence expressing the main point of this section of the speech A. Sub point [As with main points‚ sub points should be written in full sentences.] 1. Sub-sub point [Write sub-sub points in full sentences.] 2. Sub-sub point B. Sub point moving from the introduction
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Key Points Chapter 1: Key to success – recurring cash flows Chapter 2: Key to success for Entrepreneurs – persistence! Chapter 3: Key to success for BP- it Explains 1) Management‚ 2) Management‚ 3) CF Executive Summary – the most important section Include ROI and NPV (IRR?) Ratio analyses Chapter 4: Key point – must use the same accounting method Key point: Successful entrepreneurs know their cash position at all times. Chapter 5: Liquidity – the most important ratios Key point – Entrepreneurs
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Melting Point Determination Lab Materials: Graduated pipette Capillary tube Tin wipe Sample Melting temperature apparatus Thermometer Procedure: Take open end of capillary tube and tap it gently into sample. Take tin wipe and place over the opening. Gently tab it so the sample will funnel to the bottom of the tube. You may also use a graduated pipette to accomplish this. Now‚ place the capillary tube in the designated spot in the melting apparatus‚ and once placed‚ turn the apparatus
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Functions 1 Functions A function f from a set A to a set B is an assignment of exactly one element of B to each element of A. We write f(a) = b if b is the unique element of B assigned by the function f to the element a of A. If f is a function from A to B‚ we write f: AB (note: Here‚ ““ has nothing to do with if… then) 2 Functions If f(A)=B‚ we say that A is the domain of f If f(a) = b‚ we say that b is the image of a. The range of f(A)=B is the set of all images of elements of A. We say that
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that you determine how strong you are and the willpower which you have to succeed‚ everybody can be successful when challenges are easy‚ but it really counts when life is hard. Coming to James Weldon Johnson Middle School has been the biggest turning point in my life so far‚ before I was a shy fifth grader‚ but when I came to this magnificent middle school I met encouraging teachers who helped me change for the better. Life in fifth grade at Susie E. Tolbert was very challenging‚ and to make it tougher
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families. However‚ I was seriously mistaken upon returning to Mexico for a family vacation. I was expecting to go across the border and experience things similar to what we have in the States‚ but that was not the case. The experience is completely different and charmingly appealing. The infrastructure is nothing compered to what we have here‚ the family values are very different and how people would spend their time. When I first arrived in Mexico I was shocked at their way of living. Just
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Sample Lab Report for CHM 152 Name Lab Partner(s) Abstract: The physical properties‚ including the boiling point‚ density‚ and refractive index were measured for unknown liquid #16. The infrared (IR) spectrum of the compound was also taken. Based on the data collected‚ it was determined that the compound was likely to be salicylaldehyde. Introduction The purpose of this experiment was to determine the identity of an unknown organic liquid by measuring some of its physical
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