Lab 3: Stoichiometry of a Precipitation Reaction NOTE: All photos should be taken so the reading on the electronic balance is readable. Photo 1: filter paper being weighed on electronic balance‚ along with your student information card. Photo 2: beaker with precipitate slurry in it (after step 5) ‚ along with your student information card Photo 3: dried precipitate/filter paper being weighed on electronic balance‚ along with your student information card Additional Question Guidelines:
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10/1/2012 CORPORATE FINANCE FIN 3313.01 Fall 2012 1st MID-TERM SINAN YILDIRIM NAME (Each Multiple choice question is worth 4 points) 1. The goal of financial management is to increase the: a. future value of the firm ’s total equity. b. book value of equity. c. dividends paid per share. d. current market value per share. e. number of shares outstanding‚ thereby increasing the market value of equity. 2. A corporation: A. is ultimately controlled by its board of
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AP Chemistry Unit 2 Notes Stoichiometry You should understand all that is presented in chapter 3 of your text (Zumdahl: Chemistry‚ 8th edition). Some of the highlights are presented below. Atomic Masses (Section 3.1) Nearly every element is made up of atoms of more than one isotope for that element. A few‚ like Be‚ only have one isotope. Others can have a large number of isotopes. Tin (Sn) has ten isotopes. (No pun intended.) Isotopic abundance is determined by the use of
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Light Reflection and Refraction Pre-Lab using PhET I) Introduction: When a light ray strikes a smooth interface separating two transparent materials (like air‚ glass‚ or water)‚ the wave is partly reflected and partly refracted (or transmitted) into the second material. For an example of this‚ imagine you are outside looking at a restaurant window. You can probably see both the inside of the restaurant (from the refracted light) and some of the street behind you (from the reflected light). Similarly
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The calculations completed for this experiment include determining the amount of Na2CO3 needed to do a full reaction. This was calculated through stoichiometry calculations: Molar mass was first calculated for CaCl2*2H2O Ca = 40.078g Cl2 = 35.453g*2 = 70.906g 2H2 = 1.00794g*4 = 4.03176g 2O = 15.9994g*2 = 31.9988g 40.078g + 70.906g + 4.03176g + 31.9988g = 147.01456g or 147.0 g CaCl2 1g CaCl2 * 2H2O x (1 mol CaCl2 *2H2O/147g CaCl2 *2H2O) = 0.0068 mol of CaCl2*2H2O Molar mass was then
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Lab Report for Experiment #10 Stoichiometry of a Precipitation Reaction Student’s Name ____________________ Date of Experiment ___________ Date Report Submitted _________________ Title: Purpose: Instructor Changes: Weigh out about 1.7 g of CaCl2·2H2O and record your mass to +/- 0.1 g (for example 1.6 g‚ 1.7 g‚ or 1.8 g). We have made this change so that you will have 2 sig figs in subsequent calculations. Have you made any changes to the procedure? Please explain: Data Tables and Observation:
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Lab 4 – The Cell Answer Key Procedure 4.3 Draw a picture of a single Elodea cell and label all visible structures. See the diagram in your lab manual. Without staining‚ the only structures that should have been clearly visible should have been the cell walls and the green chloroplasts. Is this cell prokaryotic or eukaryotic? ______Eukaryotic_______________________ What evidence do you have to support this claim? The presence of organelles (chloroplasts) and its large size.
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10. Embryonic industries‚ Growth industries‚ Shakeout industry‚ Mature industry and Decline industry 11. 12. 13. (Not important) 14. Economies of scale Learning / Experience curve Capacity utilization Linkage among activities Interrelationship among business units Degree of vertical integration Timing of market entry Firm’s policy of cost or differentiation Geographical location Institutional factor (regulation‚ union activity‚ taxes‚ etc.) 15. Technology is employed to some degree
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All income (also called revenue) is recorded as a credit. All expenses and debt are recorded as debits. Asset accounts: Cash‚ bank‚ accounts receivable‚ inventory‚ land‚ buildings/plant‚ machinery‚ furniture‚ equipment‚ vehicles‚ trademarks and patents‚ goodwill‚ prepaid expenses‚ debtors (people who owe us money)‚ etc. Liability accounts: Accounts payable‚ salaries and wages payable‚ income taxes‚ bank overdrafts‚ trust accounts‚ accrued expenses‚ sales taxes‚ advance payments (unearned
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Ocean County College Department of Chemistry Stoichiometry of a Precipitation Reaction Submitted by Hendy Zelishovsky Date Submitted: 4/26/2012 Date Performed: 4/25/2012 Lab Section: Chem-180-DL1 Course Instructor: Dr. Cynthia Spencer Purpose
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