1. Determining the concentration of KMnO4 from the solution created by the stockroom. 16H+ + 2MnO4- (aq) + 5C2O42- (aq) → 2Mn2+ (aq) + 10CO2 (g) + 8H2O (l) Volume of potassium manganate (KMnO4) = 32.5 mL Mass of Sodium Oxalate (NaC2O4): 0.104 [KMnO4] Calculation: = (0.104g of NaC2O4)(1 mol NaC2O4 /134.0g)(2 mol KMnO4 / 5 mol NaC2O4)(1/32.5 mL)(1000 mL /1L) = 0.00955 M KMnO4 2. Using the standardized concentration of KMnO4 calculated above to find the mass percentage of the oxalate ion Equation:
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ACCT 2301 Spring 2015 Professor Dinan Christopher Doherty‚ Luiz Franciss‚ Sydney Campbell & Raul Concepcion The Craddock Cup: Questions: Spring 2015 The purpose of this case is to illustrate the importance of understanding cost behavior in calculating the profit/contribution of the Craddock Cup. Within this context‚ the case asks whether the tournament should be continued‚ expanded or dropped. In addition‚ the case provides a vehicle to discuss allocation procedures
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for the World Cup. So by a number of hands‚ how many of you have heard of the World Cup? I’ll be informing you all a little more knowledge about one of the biggest competitions in the world. (Change) I’ll be teaching you all about the history of the World Cup‚ awards given during the competition‚ and about the next World Cup. (CHANGE) First‚ we will be discussing the history of the FIFA World Cup. FIFA stands for Federation Internationale de Football Association. * The World Cup began back in
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country‚ one can realize that coffee is one of the most favorite products among American people. It has remained in the top positions for some decades. However‚ drinking coffee is not only the consumption of a product; it has become a daily activity. It is normal to hear this question when someone wants to meet up with one person: “do you want to get a coffee tomorrow and we can talk about...?” Any excuse is good enough to get a cup of coffee. The beginning of the coffee industry dates back to the 1960’s
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In order to describe the molar volume of pure water the equation V_3=M_3⁄ρ_(3 ) is used‚ whereas those of sodium nitrate and the polyether compound poly(ethylene glycol) (PEG) are shown by V_1=V_(∅_1)^∞and V_1=V_(∅_2)^∞. In these two equations‚ V_(∅_1)^∞ and V_(∅_2)^∞ which are the apparent molar volumes at infinite dilution of sodium nitrate and poly(ethylene glycol)‚ must be computed on the basis of data on apparent molal volume (V_∅). The following equation shows the relation of the V_∅ of a
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Calorimetry and Specific Heat Tessa Williams Chemistry 111 11/13/13 Abstract: In this experiment‚ the specific heat and the density of an unknown metal was determined in order to identify the unknown metal. The average specific heat of the unknown metal was 0.197˚C and was determined using a calorimeter. The density of the unknown metal was 6.57 g/mL and was determined using a cylinder and displacement. Using the specific heat value of the unknown metal and its density‚ it
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Thermodynamics/Calorimetry Introduction: Thermochemistry investigates the relationship between chemical reactions and energy changes involving heat. The amount of heat generated or absorbed in a chemical reaction can be studied using a calorimeter. Purpose: The purpose of this laboratory was to determine the heat capacity of the calorimeter‚ and to understand thermodynamics/calorimetry by applying the calorimetry equation‚ Heat lost=Heat gained. We will use calorimetry to determine
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CABALA paper cup company. Now‚ I’ll introduce the advantages and after-sales service about our company’s unique designed paper cup. Let’s begin with the advantages of the new production—with handle paper cup. CABALA paper cup has six mainly advantages. Environmentally friendly‚ assures products‚ easy hand-held‚ multifunctional‚ product diversity‚ and the best production environment and the best production services. Let’s look at the environmentally friendly first. Our company’s paper cup is made
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g.‚ sliced ¼ cup brown‚ sugar 1 tbsp. butter Procedure: Beat eggs and add salt. Sauté onions and tomatoes in oil. Pour scrambled eggs and cook until done. Transfer to plate. In the same pan melt butter. Dip sides of luncheon meat slices on sugar then pan fry in butter. Served glazed luncheon meat with scrambled eggs. Shrimp Chowder Ingredients: ¼ cup butter or margarine 1 kilo shrimp‚ shelled and deveined 1 ½ cups of Alaska Evaporated Filled Milk 2 tbsp garlic 1 cup chopped onion
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CUP OF LAVA Camille Sager Darielle Donato Eric Valerio I. Introduction Salt‚ also known as common salt‚ table salt‚ rock salt‚ or halite‚ is an ionic compound with the formula NaCl (sodium+chloride). Sodium chloride is the salt most responsible for the salinity of the ocean and of the extracellular fluid of many multicellular organisms. As the major ingredient in edible salt‚ it is commonly used as a condiment and food preservative. Because of its importance to survival‚ salt has often
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