CHEM 1105 Experiment 4: Determination of a Chemical Formula Introduction When atoms of one element combine with those of another‚ the combining ratio is typically an integer or a simple fraction. The simplest formula of a compound expresses that atom ratio. When two or more elements are present in a compound‚ the formula still indicates the atom ratio. To find the formula of a compound we need to find the mass of each of the elements in a weighed sample of that compound. For example‚
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Excel Formulas and Functions Microsoft Office Excel is used to store data and crunch numbers in all types of businesses. The spreadhseet program’s power lies in Excel functions and Excel formulas‚ which allow all sorts of data analysis‚ from simple sums to standard deviations. Consider this Cheat Sheet your quick and easy Excel tutorial. Excel Functions You’re Likely to Use Some Excel functions apply to specific subject areas‚ but others are general and apply to all needs. The following list
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MECHANICAL PROPERTIES Table I lists minimum yield strength‚ minimum ultimate tensile strength‚ and minimum elongation values. Yield strength‚ ultimate tensile strength‚ and elongation property values are determined with standard test method ASTM B557. This table also includes hardness screening criteria values‚ indicated in parentheses. As applicable‚ minimum electrical conductivity values are also specified. TABLE I Minimum Ultimate Tensile Strength3 (ksi) 38.0 38.0 35.0 26.0 38.0 38.0 38.0 25
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Chemistry Dr. Isotone Lab 1: Determination of the Empirical Formula of Silver Oxide Lab Objective: In this experiment‚ the percent composition and empirical formula of silver oxide will be determined. Silver oxide will be heated until it decomposes to silver metal and oxygen‚ and the percent calculation and empirical formula can be calculated based on combining the ratios of silver and oxygen in the reaction. Summary of Lab Procedure: 1. Set up Bunsen burner on a ring stand
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Mark Zukerberg Facebook Creator Title: Research report on entrepreneur Mark Zuckerberg. Date: 18-October-2010 Mark Zuckerberg was born on May 14‚ 1984. He is an American entrepreneur who co-founded the social networking site Facebook. In this report I will talk about how my chosen entrepreneur came to how they are today and give details of their enterprise. Marks Story: Zuckerberg started programming when he was in middle school. He enjoyed developing computer programs‚ especially
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Homework 2 Solution Key Problem 1. Suppose that you sell short 500 shares of Intel‚ currently selling for $40 per share‚ and you give your broker $15‚000 to establish your margin account. Assume Intel pays no dividends. a) If you earn no interest on the funds in your margin account‚ what will be your rate of return after one year if Intel stock is selling at (i) $44; (ii) $40; (iii) $36? The gain or loss on the short position is 500 P . Invested funds are $15‚000. Therefore‚ your rate
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Finance Lecture 2 Online practice exercises: 1 of 3 ID: ACST201.01.102.L Calculate the accumulated (future) value (S) when $70‚000 is invested at 2.04% pa simple interest for 380 days. Give your answer in dollars and cents to the nearest cent. S = $ [1 out of 1]- Feedback Your answer is within an acceptable range of the correct answer and you have received full marks. Calculation The accumulated value can be calculated using the following formula: show variables P = amount invested
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ρ = [ 1 / N ] * Σ { [ (Xi - μX) / σx ] * [ (Yi - μY) / σy ] } Statistics Unless otherwise noted‚ these formulas assume simple random sampling. * Sample mean = x = ( Σ xi ) / n * Sample standard deviation = s = sqrt [ Σ ( xi - x )2 / ( n - 1 ) ] * Sample variance = s2 = Σ ( xi - x )2 / ( n - 1 ) * Variance of sample proportion = sp2 = pq / (n - 1) * Pooled sample proportion = p = (p1 * n1 + p2 * n2) / (n1 + n2) * Pooled sample standard deviation = sp = sqrt [ (n1 - 1) * s12 +
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Case Study #1: Green Valley Medical AEM 4570: Advanced Corporate Finance Name: Di Hu Net ID: dh583 1. What are the key elements of Green Valley’s strategy? a. What kind of hospital is it‚ and how does that relate to their overall strategy? Green Valley Medical Center is a nonprofit teaching hospital comprising of 330 beds affiliated with a large state university in a midsize town located several hours from the state’s two urban centers. It was the only regional hospital
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Freshman Composition 112 – 12:00 MWF Critical Literature-Based Essay Shavon Daniels October 10‚ 2012 Marks The roles of men and women are changing. Things are not what they used to be. “Today’s father is no longer always the traditional married breadwinner and disciplinarian in the family. He can be single or married; externally employed or stay-at home; gay or straight; an adoptive or step-parent; and a more than capable caregiver to children facing physical or psychological challenges
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