Observations of Chemical Changes Lab Report Expectations: Data Table 1: What you Expected to happen Well #/ Question Chemicals Reaction A NaHCO3 and HCI - C02 A bubble occurrence B HCI and BTB A deep yellow C NH3 and BTB A purple color D HCI and blue dye A deep blue E Blue dye and NaOCI A greenish color F NaOCI and KI A bright red G KI and Pb(NO3)2
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Lecture No. 1 Chemical Kinetics 1.1 The Rate of a Reaction Chemical Kinetics is the area of Chemistry that is concerned with the speed‚ rate or mechanism at which a chemical reaction occurs. Reaction Rate is the change in the concentration of a reactant or product with time (i.e. M/s). It measures how fast a reactant is consumed and how fast a product is formed. 1.2 WRITING RATE EXPRESSIONS Consider the following hypothetical reaction. A + 2B ( 3C + D Rate = - rate
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solution at 25° C. (i) Write the balanced chemical equation for the dissociation of Cu(OH)2(s) in aqueous solution. Cu(OH)2 Cu 2+ + 2 OH – (ii) Calculate the solubility (in mol/L) of Cu(OH)2 at 25 °C. (1.72 x10–6 g/0.100 L)(1 mol/97.5 g) = 1.76 x10–7 mol/L (iii) Calculate the value of the solubility-product constant‚ Ksp‚ for Cu(OH)2 at 25 °C. Ksp = [Cu 2+][OH –]2 = [1.76 x10–7][3.53 x10–7]2 = 2.20 x10–20 (b) The value of the solubility-product constant
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risk of the investments are as follows: Investment Expected Return Expected Risk Index X 14% 7% Y 12% 8% Z 10% 9% a. If Sharon were risk-indifferent‚ which investments would she select? Explain why. b. If she were risk-averse‚ which investments would she select? Why? c. If she were risk-seeking‚ which investments would she select? Why? d. Given the traditional risk preference behavior exhibited by financial managers‚ which investment would be preferred
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Introduction: 1) This report considers the potential purchase of the sodium chlorate producing plant in Collinsville‚ Alabama by Dixon Corporation from American Chemical Corporation in October 1979. The reason for this stems from the fact that American Chemical Corporation was attempting at the time to buy a controlling stake in Universal Paper Corporation‚ but the management of Universal contested this on the basis that it would be anti-competitive‚ given that they were both producers of sodium
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Data Tables: Part 1: Chemicals Well No. Observations of the Reaction A. NaHCO3 + HCl 1A Bubbles appeared for 5 seconds. Now clear in color‚ no bubbles B. HCl + BTB 2A Turned from clear to yellow C. NH3 + BTB 3A Turned from clear to dark blue D. HCl + blue dye 4A Turned from clear to green E. Blue dye + NaOCl 5A Turned from blue to light blue with the 1 drop of HCl 6A Turned from blue->light blue->yellow->light yellow->clear‚ transparent F. NaOCl + KI 7A Turned from clear to Light yellow
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Chemical Imbalance and Depression Melissa Creamer PSYC 3002- Developing a Psychology Perspective Project Draft - Persuasive Paper Capella University mcreamer@capellauniversity.edu October 2012 Introduction According to some Psychologists‚ chemical imbalance can lead to depression and other mental illnesses. It is very unclear that depression is one of the possible symptoms of a chemical imbalance. However‚ chemical imbalance doesn’t lead to every kind of depression seen in the lives of
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capability gap that separates Orange Electric Plc.‚ is a necessary condition to put the latter on a path of sustainability. The importance of learning alliances to capability development places a premium on Orange Electric Plc.’s ability to identify‚ assimilate‚ and utilize a partner’s (Finland) knowledge. However‚ this is limited primarily to how they should be structured and managed. Therefore‚ it is important that such operational issues as when Orange Electric Plc. may need to form a joint venture to
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04/02/14 Date Submitted: 04/15/14 Name: Lisa Jacoby Title: Physical and Chemical Properties Purpose: Investigating the chemical properties of pure chemical substances as well as exploring the physical properties of pure chemical substances Procedure: 1. I half-filled one well of a 24-well plate with 6M HCl and half-filled a second well of the 24-well plate with 6 M NaOH. I then sucked up these chemicals into their labeled pipets. I then set aside for later 2. I performed the following
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Experiment 1: Observations of Chemical Changes Purpose: To observe the macroscopic changes that occur in chemical reactions and attempt to interpret the microscopic changes of the atoms and molecules that allow for the macroscopic changes to happen; and to associate these chemical properties with household products. Also‚ it is to learn the importance of how to separate mixtures into their component substances by solubility. Procedure: Before starting with the official experiment‚ it was important
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