Empirical Formula of a Compound * Purpose: To determine the empirical formula of Magnesium Chloride. * Data 1. Mass of evaporating dish = 45.08g 2. Mass of evaporating dish and Magnesium = 45.17g 3. Mass of Magnesium: { 2 } – { 1 } = 0.09 4. Mass of evaporating dish and Magnesium Chloride First weighing = 45.48g (After heating and cooling) second weighing = 45.49g 5. Mass of Magnesium Chloride: { 4} – { 1 } = 0.41g
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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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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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the “reality principle”. Last but not least‚ the Superego is the source of conscience that inhibits the socially undesirable impulses of the Id. It operates on the “moral principle”. Both the Id and Superego are displayed by Henry in the movie‚ “Regarding Henry”. His natural state however‚ is predominantly the Superego. Some of Henry’s actions in the movie can be classified as him acting on his Id. For instance‚ his affair with Linda. If Henry had thought that out rationally‚ then hopefully he
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Kant: The Humanity Formula "Few formulas in philosophy have been so widely accepted and variously interpreted as Kant’s injunction to treat humanity as an end in itself"(Hill‚ 38). Immanuel Kant’s views‚ as elucidated in his book‚ Groundwork of the Metaphysics of Morals‚ are based on the belief that "people count" by prohibiting actions which exploit other individuals in order for self-prosperity or altruistic ends. Ethics then‚ are confirmed by the dignity and worth of the rational agency of
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Computer The Determination of a Chemical Formula 1 Second‚ you will conduct a chemical reaction with the dried sample‚ which will produce elemental copper. By measuring the mass of copper that forms‚ you will have the necessary information to determine the moles of copper and chlorine in your sample‚ and you will be able to establish the proper chemical formula. OBJECTIVES • • • In this experiment‚ you will Ev al Determine the water of hydration in a copper chloride hydrate
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In the film Regarding Henry‚ Henry Turner is a big shot trial Lawyer who will stop at nothing to win his cases. He is brutal‚ tough‚ and at times‚ dishonest. His aggressiveness would make him seem like Freud’s theory of the Id side of one’s consciousness‚ but his Id makes him a naturally good person and his evil side comes from his Superego. In the beginning of the movie‚ Henry ends up going through a traumatic experience. When going to a store to buy some cigarettes‚ Henry is confused when the
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the hypothesis of Soft Determinism it guarantees that when an individual is the reason for his or her activities‚ he or she can act openly. Delicate determinism holds that free activities‚ are those that continue from our own particular volition. Both hard determinism and delicate determinism concur that go before a strategy is foreordained. They are diverse on the grounds that as a delicate determinist I trust that an individual can battle to settle on a choice on the inputs. Soft determinism and
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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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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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