Formula of a Hydrate Lab Wednesday October 29‚ 2014 Chemistry Honors Purpose This lab was done to determine the percentage of water in a hydrate‚ which was CuSO4 ?H20. Not only the percentage of water can be found‚ the moles of water can be found per one mole of anhydrous salt. An anhydrous salt is a hydrate that lost its water. Using various lab equipment such as burners‚ crucible‚ and balance‚ and techniques such as the mass-to-mole ratio and mass to percentage‚ the percentage of water in a hydrate
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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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Grade 8 Mathematics Formula Sheet 2009 Mathematics Standards of Learning Geometric Formulas s h w r d s l b p = 4s A = s2 A = 1 bh 2 C = 2π r C = πd A = πr2 p = 2l + 2w A = lw b1 b r h h h l b2 b A = bh h h w V = lwh S.A. = 2lw + 2lh + 2wh A = 1 h(b1 + b2 ) 2 B l V = πr 2h S.A. = 2πr 2 + 2πrh l h c a r B b V = 1 Bh V = Bh S.A. = hp + 2 B h a2 + b2 = c2 V = 1 πr 2h 3 S.A
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During this experiment‚ we were able to grasp the understanding of the different ways a solid and liquid can be transferred from one bottle to another. First‚ we learned how to transfer a small amount of liquid and that was by using a dropper pipet. However‚ a larger amount of liquid required more work as we transferred the water from one container we used a stirring rod that held in place over the opening of the container to direct its flow nicely into the other container. We
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10/19/2011 Akruti Patel Lab Report #4: Determination of a chemical formula: the empirical formula of Magnesium Oxide 1. Purpose: Determine the empirical formula of magnesium oxide from the percent composition (this can found using the Analytical Method and the Synthesis Method). 2. Introduction: In the late eighteenth century‚ combustion has been studied extensively. In fact‚ according to Steven and Susan Zumdahl‚ Antoine Lavoisier‚ a French Chemist‚ performed thousands of combustion experiments
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Overview of Relevant Formulas Corporate Finance (B40.2302) _________________________________________________________________________________________ 1. Present value of $1 to be received after t years at discount rate r: 2. Present value of annuity of $1 per year for t years at discount rate r: $1 (1 + r )t ⎡1 − (1 + r ) − t ⎤ ⎢ ⎥ × $1 r ⎣ ⎦ 1 ⎡ (1 + g )t ⎤ 3. Present value of growing annuity of $1 at rate g per year at discount rate r: ⎢1 − ⎥ × $1 r − g ⎣ (1 + r )t ⎦ $1 r 4. Present value
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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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Shawn Dubbs Lab 1 The Mole Concept of and the Chemical Formula of a Hydrate Abstract: The objective of this lab was to conduct an experiment to analyze the molar components in alum. This was conducted by heating the alum till the water had evaporated and then determining the number of moles for each component. Then using the these amounts to figure out the empirical formula for alum. Results: In order to determine how much of each separate component a total mass was taken before hand for
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STUDY 805 The design of a Formula Student race car: a case study A Mihailidis*‚ Z Samaras‚ I Nerantzis‚ G Fontaras‚ and G Karaoglanidis Department of Mechanical Engineering‚ Aristotle University of Thessaloniki‚ Thessaloniki‚ Greece The manuscript was received on 28 November 2008 and was accepted after revision for publication on 5 March 2009. DOI: 10.1243/09544070JAUTO1080 Abstract: This paper presents the procedure followed in order to design the first Formula Student race car of the Aristotle
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The EOQ Inventory Formula James M. Cargal Mathematics Department Troy University – Montgomery Campus A basic problem for businesses and manufacturers is‚ when ordering supplies‚ to determine what quantity of a given item to order. A great deal of literature has dealt with this problem (unfortunately many of the best books on the subject are out of print). Many formulas and algorithms have been created. Of these the simplest formula is the most used: The EOQ (economic order quantity) or
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