Semester II Course Code and Title: CHEM1901 - INTRODUCTORY CHEMISTRY A Date: Duration: Time: 2 Hours. Paper No: 1 Materials required: Answer booklet: Calculator: (where applicable) Multiple Choice answer sheets: Programmable □ □ numerical □ Normal Special Not required □ Non Programmable □ 1-20 □ 1-100 □ alphabetical Auxiliary/Other material(s) – Please specify: CHEMISTRY ANSWER BOOKLET Candidates are permitted to bring the following
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Stocks versus Bonds: Explaining the Equity Risk Premium Clifford S. Asness From the 19th century through the mid-20th century‚ the dividend yield (dividends/price) and earnings yield (earnings/price) on stocks generally exceeded the yield on long-term U.S. government bonds‚ usually by a substantial margin. Since the mid-20th century‚ however‚ the situation has radically changed. In addressing this situation‚ I argue that the difference between stock yields and bond yields is driven by the long-run
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Chapters in this Part Chapter 6 Interest Rates and Bond Valuation Chapter 7 Stock Valuation Integrative Case 3: Encore International © 2012 Pearson Education‚ Inc. Publishing as Prentice Hall Chapter 6 Interest Rates and Bond Valuation Instructor’s Resources Overview This chapter begins with a thorough discussion of interest rates‚ yield curves‚ and their relationship to required returns. Features of the major types of bond issues are presented along with their legal issues
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29) The structural formulas are given for these cis or trans alkenes. (a) trans-1‚2-dichloropropane (b) cis-2-pentene (c) cis-3-hexene (d) trans-2-hexene Write the structural formula for: (a) cis-1‚2-dichloropropene (b) trans-2-pentene (c) trans-3-hexene (d) cis-2-hexene 30) In each case‚ tell whether cis and trans exist. If they do‚ write the structural formulas for two isomers and label each cis or trans‚ (a) Br2CH2 : No (b) CH3CH2CH=CHCH2CH3: Yes (c) CH3CH=CHCH3:
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Our calculations of enthalpies so far have involved covalent substances. Now we need to look at the enthalpy changes involved in the formation of giant ionic lattices. Lattice enthalpy is defined as either the: ’the enthalpy change that occurs when one mole of a solid ionic crystal is broken into its ions in the gaseous state‚ at standard temperature and pressure. Because all the bonds in the ionic lattice are broken‚ it is an endothermic process‚ ∆H is positive. ’ The IB uses this definition
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1) Demonstrate understanding of the terms atom and molecule. Atom= Smallest Unit of Matter Molecule= 2 or more atoms chemically bonded. 2) Describe paper chromatography. 3) Interpret simple chromatograms. A method used to separate a Solution‚ using a Paper and a beaker of water. The Substances in the Paper go up depending on their Mass. We can say that a Solution has the same substance as another solution because they form a line of the same height. 4) Describe methods of separation
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He a lt h 0 3 2 3 Fire 0 Re a c t iv it y 2 P e rs o n a l P ro t e c t io n Material Safety Data Sheet Sulfuric acid MSDS Section 1: Chemical Product and Company Identification Product Name: Sulfuric acid Contact Information: Catalog Codes: SLS2539‚ SLS1741‚ SLS3166‚ SLS2371‚ SLS3793 CAS#: 7664-93-9 Sciencelab.com‚ Inc. 14025 Smith Rd. Houston‚ Texas 77396 RTECS: WS5600000 US Sales: 1-800-901-7247 International Sales: 1-281-441-4400 TSCA: TSCA
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Q. 1. During the electrolysis of molten lead bromide‚ which of the following takes place : A : Bromine is released at the cathode. B: Lead is deposited at the anode. C : Bromine ions gain electrons. D: Lead is deposited at the cathode. Ans : - D. Q. 2. Here is an electrode reaction : Cu → Cu2+ + 2e-. [i.e. Cu- 2e- →Cu2+]. At which electrode(anode or cathode) would such a reaction take place. Is this an example of oxidation or reduction. Ans : - At anode. Oxidation. Q. 3. A solution contains
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Eric Palomino P.4 12/04/13 Brandon Bond Brandon Bond was born in Perdido Key in Florida‚ USA and is considered as one of the many legends of modern American tattooing. As a student of Fine Arts in Texas Brandon started tattooing in College. Then under Shaman Bear he began his formal apprenticeship. He started working at Tattoo Zoo during College‚ after College he went to Vegas and tattooed on Las Vegas Blvd. Then in New Hampshire he worked with his friend Joe Capobianco. Followed by Slave
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CHE 242 Tutorial 3: Problems & Answers Week 4: Feb 2- 6‚ 2009 1. Consider a gas that occupies 1.00 dm3 at a pressure of 2.00 bar. If the gas is compressed isothermally at constant external pressure‚ Pext‚ so that the final volume is 0.500 dm3‚ what is the smallest value Pext can have? Calculate the work involved using this value of Pext. Solution For compression to occur‚ the value of Pext must be at least as large as the final pressure of the gas. P1 = 2.00 bar‚ V1 = 1.00 dm3‚ V2 = 0.500
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