Radha Shukla Determination of the Empirical Formula of Silver Oxide Will/Radha College Chemistry 9/12 – 9/13 9/17 The purpose of this lab is to use one of the ways to identify different compounds and be able to tell them apart. Based off of experimentation‚ the empirical formula of the given silver oxide will be determined. Materials: Chemicals: Silver Oxide‚ 0.5g Equipment: Balance‚ 0.001-g or 0.0001-g precision Bunsen Burner Clay pipestem triangle Crucible and cubicle lid‚ 15-
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Objects that are made from silver or coated with it‚ by time‚ start to tarnish. Tarnish is s chemical process that leads to dullness of color of the surface of the metals such as silver‚ gold‚ aluminum‚ iron‚ brass and copper. This reaction mostly happens because of the air pollution and/or moisture. To remove the tarnish from the metals‚ the silver objects must undergo a chemical reaction. Thus this chemical reaction would make the silver object look shiner. The chemical reaction to clean up the
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Silver Mirror Experiment Background: This experiment was first conducted by Bernhard Tollens‚ it is used to determine whether a carbonyl containing compound is an aldehyde or a ketone. An aldehyde is a compound containing a formyl group (CHO).The experiment involves diamminesilver complex and a chemical reagent (also known as “Tollens’ reagent”) which in this case is glucose. In a successful experiment a reflective silver metal should precipitate‚ with characteristics identical to that of a mirror’
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of silver as a national currency. Because of the present economic situation‚ people have not had time to think about the subject. The intention of this essay is to inform all those who until now have not reflected on this proposal. I believe Mexico should adopt a silver standard because Mexico is the biggest producer of silver in the World‚ Mexico has had success using the silver standard in the past‚ and silver is a standard without risks. The first reason why Mexico should adopt a silver standard
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SYNTHESIS OF SILVER NANOPARTICLES AND ITS CYTOTOXIC EFFECT AGAINST THP-1 CANCER CELL LINE 1 * Department of Biotechnology‚ Modern College‚ Shivajinagar‚ University of Pune‚ Pune‚ India. Mrs Rebecca Thombre email rebecca.thombre@gmail.com Telephone 9822224957 020 400966725 ABSTRACT: Nanotechnology is a field of science which involves the synthesis and applications of nanoparticles. Silver nanoparticles (AgNp) have applications in various fields due to their unique
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development of silver from the mid-sixteenth century to the eighteenth century caused social and economic changes by making the wealth of countries such as Spain and Japan increase‚ which increased economic opportunities within their trade partners‚ while also creating a social division in their own countries with the heavy use of slavery. Due to the findings of silver at Potosi in 1545‚ trade in Europe flourished and slaves played a more vital role in the search for Silver. Before silver was discovered
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Irritant‚ flammable 1-chlorobutane 92.58 78 -123 0.881 Irritant‚ Flammable 2-chlorobutane 92.57 68 -140 0.870 Flammable‚ Irritant 2-bromobutane 137.02 91 -112 1.250 Flammable‚ Irritant Ethyl Alcohol 46.07 79 -114 0.789 Flammable‚ Irritant Silver Nitrate 169.87 444 212 4.350 irritant Sodium Iodide 149.89 1300 651 3.667 irritant water 18.02 100 at 1atm 0 at 1atm 0.997 none Procedure See Introduction to Organic Laboratory Techniques: A Microscale Approach‚ 5th edition by Pavia
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with silver nitrate solution of known concentration. Silver ions form insoluble silver chloride when added to a solution containing chloride ions: Ag+(aq) + Cl-(aq) -> AgCl(s) By adding silver ions until silver chloride is no longer precipitated‚ the amount of chloride in a solution can be found. Potassium chromate (VI)‚ K2CrO4‚ can be used to indicate the end-point of the titration‚ the point at which all chloride ions have been precipitated. Silver ions
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Analysis of Silver in an Alloy Quinn Kelly Kevin Hoover 9/12/12 PURPOSE The purpose of this lab was to analyze the amount of silver in an alloy using quantitative and qualitative observations. PROCEDURE 1. Prepare the Funnel and Filter Paper • Place the filter paper in the Buchner funnel‚ turn the water on and wet the filter paper with the acid wash. 2. Find the Mass
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Test tube C did not mix well with the silver nitrate. The Iodine stayed at the bottom while the silver nitrate collected at the top. Test tube D did absolutely nothing‚ but get a little cloudy 5. Conclusion: The purpose of this lab was to see how silver nitrate affects the reactive Halogens and to see if it formed a precipitate. Most results were the same where a precipitate formed. Some took longer than others to form where as others had no effect to the silver nitrate. Two ways to improve the lab
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