2013 Percent Yield of Calcium Carbonate Introduction: The purpose of this experiment is to examine the percent yield of a precipitate in a double displacement reaction. A solution of calcium citrate and sodium carbonate were mixed together‚ then the products were filtered out as so only the precipitate remained. The filtered paper was then dried and the mass of the precipitate in the experiment divided by the theoretical mass of the precipitate from the calculated gave the percent yield.
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Fin 3320 Practice Questions1 – Total Course 1. Your wealthy uncle has set up a special account that will give you $500‚000 on your 35th birthday. Assuming you are age 21 (thus 14 years from receiving this)‚ what is the present value of this gift if the appropriate discount rate is 8.0%? (Ch5) a. $170‚231 b. $282‚449 c. $442‚619 d. $191‚206 e. $734‚664 2. You need $10‚900 for the down payment on a new car. You presently have $5‚000 in savings for which you expect to earn 6% (annual rate‚ compounded
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Copper Sulphate Calibration Aim The objective of this experiment is to determine the unknown concentrations of solutions. Introduction With the use of absorption of light a spectrophotometer sends UV wavelengths through solutions to determine their concentrations. The light absorbed is measured as the atoms‚ molecules and ions absorb the wavelengths of light that the spectrophotometer gives off (Meah‚2013). The level of light transmitted defines the amount of light absorbed‚ for instance‚ the lower
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Penny Argumentative Performance Task Garrett Forrest Do you think the penny should be preserved? The one-cent piece‚ commonly referred to as the penny has been in a giant argument in the United States about whether if we should keep the penny in circulation‚ or abolish the penny totally from the U.S currency. The penny should be abolished totally from the U.S Currency for several different reasons. To begin with‚ have you ever thought about the cost of a penny? If you ask a random person‚ they
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preservation of the past. The penny‚ despite its seemingly futile existence‚ is a major part of American history. It should remain in circulation not only because it is deeply rooted in society‚ but also because it is a constant reminder of our history. Due to the prominence of pennies in America‚ it would be nearly impossible to eliminate them from society. To begin with‚ the federal government would have to sway a society that is primarily in favor of keeping the penny in circulation (Harris Poll)
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We all know the penny‚ it is similar to the avocado due to the fact they both should be eliminated‚ but are still here today. The avocado should have been eliminated because its survival depended on the giant armadillo‚ and the penny should be eliminated because of inflation. Pennies should be abolished because it costs more to make than it is worth‚ we already abolished a coin without bad side effects‚ and most arguments against it have solutions. First‚ the penny costs more to produce than it is
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A Bill To Eliminate The Penny: Prelim Legislation #19: PRO The penny: Everyday you find them in your coat pocket‚ or lying on the sidewalk. Anyone who has been to a fast food restaurant has experienced the frustration of being behind someone who is attempting to pay for their purchase off the dollar menu with 100 pennies‚ wasting the time of everyone else in line. Pennies take refuge under couch cushions‚ and are either tossed to the side or put in a jar to be eventually traded in. In this day and
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In the novel Copper Sun the viewpoints were taken from a 15-year-old slave girl named Amari‚ and a 17-year-old indentured servant Polly‚ Copper Sun is a story of the struggles in the face of human beings during slave times and a hope for freedom against all odds and circumstances. In the novel the AOI that it is portrayed is the area of Health and social education. I chose this AOI because both Amari and Polly had to adapt to their new surroundings and they also had to learn the routes around the
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and nothing more. At night if you were female you got raped often. If you were a male you worked in the rice fields‚ with the alligators and the snakes and if you ever disobeyed or did something incorrect you were wiped and beaten. In the book the copper sun Amari the female protagonist‚ goes through these hardships and has to find some reason to live and fight for her freedom. Amari shows traits of perseverance‚ bravery and strength. But still through all of these things she fights to be free.
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Chemistry 11 Final Examination Review - Answers Part A - True or False. Indicate whether each of the following statements is true or false. Correct the false statements. F 1. The mass of an electron is equal to the mass of a proton. The mass of an electron is less than the mass of a proton. T 2. The mass of a proton is approximately equal to the mass of a neutron. T 3. The atomic number represents the number of protons in a nucleus. T 4. The proton has a mass of approximately
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