Fractions are ways to represent parts of a whole. Common fractions are ½ and ¾. These are proper or regular fractions. Some fractions are called mixed numbers. These are represented by a whole number with a fraction (proper fraction). 1 ½ and 2 ¾ are good examples. An improper fraction has a larger number on the top than on the bottom‚ such as 9/8. I will explain how to convert these fractions to decimals. I will show you how to change an improper fraction to a mixed number. Operations (addition
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Mole Fraction Return to Solutions Menu The mole fraction is: moles of target substance divided by total moles involved The symbol for the mole fraction is the lower-case Greek letter chi‚ χ. You will often see it with a subscript: χsolute is an example. Example #1: 0.100 mole of NaCl is dissolved into 100.0 grams of pure H2O. What is the mole fraction of NaCl? Solution: 100.0 g / 18.0 g mol¯1 = 5.56 mol of H2O Add that to the 0.100 mol of NaCl = 5.56 + 0.100 = 5.66 mol total Mole fraction
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The density of fractions 1‚ 2‚ and 3 are as follows: 1.49‚ 1.325‚ and 1.34 g/mL. These values areincorrect because the density should not have been over 1.0 g/mL. This is because the density of water is 1.0 g/mL‚ and the product should have had a mixture of ethanol and water‚ making the density lower. The measured weight of the vials and ethanol were incorrect due the scales.There are many factors that can cause a scale not to read the correct value. The first is the airflow underneath the weighing
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M10/3/HISTX/BP1/ENG/TZ0/XX/S3/M This markscheme is confidential and for the exclusive use of exa miners in this examination session. It is the property of the International Baccalaureate and must not be reproduced or distributed to any other person without the authorization of IB Cardiff. -3- M10/3/HISTX/BP1/ENG/TZ0/XX/S3/M For the attention of all examiners: if you are uncertain about the content/accuracy of a ca ndidate’s work please contact your team leader. 1. (a) W hat does Source B suggest about the views of
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Jonghyun Choe March 25 2011 Math IB SL Internal Assessment – LASCAP’S Fraction The goal of this task is to consider a set of fractions which are presented in a symmetrical‚ recurring sequence‚ and to find a general statement for the pattern. The presented pattern is: Row 1 1 1 Row 2 1 32 1 Row
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By: Sean Polson 05 September 2011 Organic Chemistry Lab: Experiment 1 Section 2 – 12:30 to 2:20 Distillation and Fractional Distillation Distillation and Fraction Distillations Purpose: The purpose of distillation is to purify a liquid. Distillations are use to purify contaminates out of water to obtain clean pure water‚ as well as‚ to separate mixtures of liquids into their individual components; e.g. methanol and water. Objective: Distill methanol from water using a simple distillation
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[Date] [Date] mukul88 [company name] mukul88 [company name] Semiconductor industry: Reasons of slowdown and its future. A study Semiconductor industry: Reasons of slowdown and its future. A study INTRODUCTION The semiconductor industry lives - and dies - by simple creed: smaller‚ faster and cheaper. The benefit of being tiny is pretty simple: finer lines mean more transistors can be packed onto the same chip. The more transistors on a chip‚ the faster it can do its work. Thanks in
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I realize that IB will one of the most challenging courses I will take before I enter college and I am not even in the program yet. It is a culture in itself. However‚ I am also a part of the music culture at EWHS where I am included in the Symphonic Band ‚ as well as the Mello- Aires and because both groups require the majority of my time‚ I am well versed in each culture’s rules and values. Both the IB program and the music program have similar standards‚ values‚ and traits to live up to‚ but
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more than $500‚000 is carried over each year‚ I would proceed to gather more information about the blood fraction from the surgeon. Why does he think the highly specialized blood fraction speeds healing time when there are no clinical studies that support his claim? I would also look at the recovery status and length of stay in hospitals for patients that have used the specialized blood fraction. If the results do not support the surgeon’s claim and there are no additional benefits for its use‚ I would
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Name: AP Economy Review Packet QUESTIONS 1. Economics is best described as a. the study of how scarce material wants are allocated between unlimited resources. b. the study of how scarce labor can be replaced by unlimited capital. c. the study of how decision makers choose the best way to satisfy their unlimited material wants with a scarce supply of resources. d. the study of how unlimited material wants can best be satisfied by allocating limitless amounts of productive
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