experiment is to convert copper metal through a series of intermediate copper compounds back into copper metal. By weighing the copper at the beginning and at the end of the experiment the percentage yield can be determined. Method: The experiment was carried out as outlined in the practical manual. Results: Table: showing masses: Mass copper wire 0.2510 Mass crucible 28.9257 Mass watch glass 19.6213 Mass watch glass + copper 19.7890 Mass copper product 0.1677 Calculations:
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Moles of Iron and Copper Lab Data and Observations Before the reaction: Mass of empty‚ dry beaker: 153.44g Mass of beaker + copper (II) chloride: 161.44g Mass of two iron nails: 7.27g After the reaction: Mass of two iron nails: 6.29g Mass of beaker + copper (dry): 154.50g Questions and Calculations 1. a) Mass of two iron nails before the reaction – Mass off two iron nails after the reaction = Mass of iron used in the reaction = 7.27g – 6.29g = 0.98g
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In the experiment‚ synthesis of copper compounds‚ the purpose was to recover the original amount of copper after series of chemical reactions. Then returning the copper back to its original form. The copper wire originally weighted 1.0099 g‚ but after the copper was transformed into Cu(OH)2 to CuO to CuSO4 and finally into Cu‚ the mass of the recovered copper was 1.1023g; the percent yield was 109%. Since the percent yield is more than 100%‚ an error must have occurred somewhere in the lab. A possible
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In Copper Sun‚ Amari is a happy teenage and she is a slave. She was engaged to the most handsome man in her African village. One morning Amari goes outside and her little brother kwasi was hanging from a tree being silly and Amari goes to get her mom some vegetables for breakfast and out of nowhere white men enters Amari’s village setting things on fire and killing people. After a while then men took chained and shackled her and put her into a slave ship. A few weeks later Amari was sold to a man
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Analysis: Copper Lab 1) Calculate the mass of the copper that was recovered 2) Use the formula shown below to calculate the “percent of recovery” of copper for your experiment. 3) Use the proper symbol and formula to write balanced equation for each of the five copper reactions‚ include state symbols. 4) Classify each of the five copper reactions. (Refer to the above order‚ please!) A) Single Displacement B) Double Displacement C) Decomposition D) Double displacement E) Single Displacement
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spend money on them to please them. And now a days make up can fix anything up a little. An honest and loving wife would be better than someone who wasn’t going to care if your troubled or having problems or not like you for who you are. Penny in the Dust I remember when I was young and went to the mall for the very first time. Since I was little‚ I didn’t know much so I started to wander around I went to the next aisle from were my mom was‚When I went back there I didn’t seem to find
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Marketing Plan for the Monogram Self-Cleaning Grill by General Electric Company CMP Final Draft BUSI 330 B02 Marketing Liberty University July 5‚ 2013 Respectfully submitted to: Professor Ron Kennedy Marketing Plan for the Self-Cleaning Monogram® Grill General Electric Company ® Table of Contents 1. Executive Summary …………………………………………………………………………………………..4 Writers: 2. Company Description ………………………………………………………………………………………..5 Writer: Strategic Focus and Plan ……………………………………………………………………………………6
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to do household cleaning efficiently Everyday as we live we produce some rubbish in our room‚ so it is neccesary to do some household cleaning in order to provide a comfortable place for us to study and to have rest. But if you do not follow the right order‚ it might take you a few hours to do the whole task. So it’s important to know how to do household cleaning efficiently. First of all‚ you have to make it clear everytime that why it is needed to do the household cleaning. Is there too much
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When cleaning our vehicles we can cut corners to save on expenses. The first step to cleaning your car is cleaning the trash from the inside of course. You can use your household vacuum cleaner and an extension cord to thoroughly clean the cracks and crevices of the car.The second step is cleaning your vehicle from the inside out. If the sun is out. Take your place mats and place them on a concrete surface. Any household broom will do if you need to sweep the dirt from the mats. Use your laundry
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Chilean Copper Mine Collapse Chilean Copper Mine Collapse A small copper mine in San Jose‚ located in north Chile‚ collapsed trapping workers underground. The mine collapsed on August 5th‚ trapping 33 workers in the mine. The coverage of this mine collapse came two long weeks after the traumatic event. Initially the incident did not catch any news worthy attention. Mine collapses are pretty common but the accident finally caught the interest of an editor‚ and then it went viral from
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