correct formula for the following binary ionic compounds. (a) Lithium fluoride LiF (b) Calcium oxide CaO (c) Aluminum nitride AlN (d) Beryllium chloride BeCl2 (e) Potassium iodide KI (f) Aluminum oxide Al2O3 23. Write the correct formula for the following binary molecular compounds. (a) Carbon monoxide CO (b) Boron tribromide BBr3 (c) Sulfur hexafluoride SF6 (d) Carbon dioxide CO2 (e) Carbon tetrabromide CBr4 (f) Nitrogen dioxide NO2 24. Write the correct formulas for
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Title of Experiment 12: The Effect of Ionic Strength on the solubility of an Electrolyte Aim: The purpose of this experiment was to determine the thermodynamics variable of enthalpy‚ ∆H for the dissolution reaction of boric acid in water. The solubility of boric acid was measured over a range of various temperatures by finding out at what temperature crystallization began for solution of different molarities. A graphical relationship between the natural logarithm of molal concentration and the inverse
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What is the empirical formula of a compound that contains 75% Ag and 25% Cl by mass? AGCL Calculate the approximate number of molecules in a drop of water with a mass of 0.10 g. 3 x 1021 molecules What is the percentage composition of CaSO4? 29.44% Ca‚ 23.55% S‚ 47.01% O What mass of calcium bromide is needed to prepare 150.0 mL of a 3.50 M solution? (Assume that the molecular weight of CaBr2 is 200.618 g/mol) 105 g Nitrous oxide (N2O)‚ or laughing gas‚ is commonly used as an anesthetic
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According to Benjamin Franklin‚ ‘’ Leisure is the time for doing something useful; this leisure the diligent man will obtain‚ the lazy man never. ‘’ Scientists prove by given statistics that in America‚ people who do an activity‚ leisure and sports‚ everyday is 96.2%‚ and they spend an average of 5.18 hours per day. Leisure‚ or free time‚ is time spent away from obligations and work. Leisure‚ nowadays‚ becomes very actual and trendy‚ with gender equalities and with the modern world of today‚ it becomes
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Introduction. Individuals thrive off producing income in order to meet their day-to-day needs and wants. Tax is imposed on these income producing activities to provide the government revenue. This involves identifying the various ranges of assessable income. The legal question which must be addressed is any of the income that was earned by these individuals assessable income under the Australian income tax assessment act? To answer this question‚ we must determine if a nexus exists between Australia
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Introduction Formula 1 racing‚ frequently called Grand Prix‚ is the top class of single-seater car racing motor sports around the globe. It was sanctioned by the Fédération Internationale de l’Automobile (FIA) in 1950 and most often it ’s shortened as F1 racing. The title Formula One lable indicates the rules‚ or "formula" that cars and participants in Formula 1 have to fulfil. These strict guidelines probably make the Formula 1 the most competitive and prestigious of all motorsports. Formula 1 has become
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Working out the Formula of Magnesium oxide Aims When magnesium is heated in air‚ it reacts with oxygen. During this oxidation reaction‚ magnesium oxide is produced. This increases the mass. If we know the mass of magnesium at the start‚ and the mass of magnesium oxide produced at the end‚ we can work out the mass of oxygen which has been combined with the magnesium. We can use these masses to work out the formula of magnesium oxide. Apparatus Googles
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Molecular Formula | Key Concepts * Empirical Formula of a compound shows the ratio of elements present in a compound. * Molecular Formula of a compound shows how many atoms of each element are present in a molecule of the compound. * The empirical formula mass of a compound refers to the sum of the atomic masses of the elements present in the empirical formula. * The Molecular Mass (formula mass‚ formula weight or molecular weight) of a compound is a multiple of the empirical formula mass.
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FREQUENTLY USED FORMULAS FOR MANAGING OPERATIONS CHAPTER 1—MANAGING REVENUE AND EXPENSE Revenue – Expenses = Profit Revenue – Desired Profit = Ideal Expense Part Whole = Percent Expense Revenue = Expense % Profit Revenue = Profit % Desired Profit Revenue = Desired Profit % Revenue – (Food and Beverage Cost + Labor Cost + Other Expense) = Profit Food and Beverage Cost Revenue = Food and Beverage Cost % Labor Cost Revenue
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Reconciling and Clarifying CLV Formulas Peter S. Fader www.petefader.com Bruce G. S. Hardie www.brucehardie.com † March 2012 1 Introduction A standard part of many contemporary Marketing courses is a case or exercise in which students are expected to compute customer lifetime value (CLV). Typically they are given an average retention rate r‚ an average net cashflow of $m per period (having accounted for “account maintenance” costs)‚ and an assumed discount rate d. Given these inputs‚ they are
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