A student find an irregular metal object. Student wanted to know the identity of this metal. As a chemistry student, you learnt that finding density of the object would be cheap, easy, and reliable method to find the identity. Explain in detail, how would you find the identity of this metal using density? When you explain the method, you show all the steps you will follow (measuring, recording, calculations,.etc) in the laboratory. For example, if you are using a measuring cylinder for taking volume, you must draw diagrams to show every aspects includin scale on the cylinder, meniscus, reading.etc

A student find an irregular metal object. Student wanted to know the identity of this metal. As a chemistry student, you learnt that finding density of the object would be cheap, easy, and reliable method to find the identity. Explain in detail, how would you find the identity of this metal using density? When you explain the method, you show all the steps you will follow (measuring, recording, calculations,.etc) in the laboratory. For example, if you are using a measuring cylinder for taking volume, you must draw diagrams to show every aspects includin scale on the cylinder, meniscus, reading.etc

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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You want to determine the density of a compound but have only a tiny crystal, and it would be difficult to measure mass and volume accurately. There is another way to determine density, however, called the flotation method. If you placed the crystal in a liquid whose density is precisely that of the substance, it would be suspended in the liquid, neither sinking to the bottom of the beaker nor floating to the surface. However, for such an experiment, you would need to have a liquid with the precise density of the crystal. You can accomplish this by mixing two liquids of different densities to create a liquid having the desired density. Consider the following: you mix 8.40 mL of CHCl (d-1.492 g/mL) and 8.10 mL of CHIBr; (d-2.890 g/mL), giving 16.5 ml. of solution. What is the density of this mixture? Density-2.183✔ g/m² Suppose now that you wanted to determine the density of a small crystal to confirm that it is sulfur. From the Mterature, you know that sulfur has a density of 2.07…
In 38.7 mL of water, a gold nugget weighing 523 g is inserted. The volume of the water increases to i.e. 70 mL. I'm curious in the gold's density.
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Commercial ibuprofen tablets contain 200 mg of ibuprofen each. The commercial tablets have the active ingredient (ibuprofen) in addition to several other additives (e.g. starch, sucrose, etc) to assist in digestion. There are 6 tablets that are used in the experiment. The maximum amount of available ibuprofen is (6 x 200 mg) = 1200 mg. Six pills Pure Ibup (after m.p. recrys.) Crude ibup. Gross mass (g) 2.89 29.50 2.09 Tare mass (g) 0.89 28.32 1.00 Net mass (g) |2g 1.18 g 1.09 g 70-71C 1) Calculate the percentage of ibuprofen in each pill. 2) Calculate the percent recovery of ibuprofen from the pills, based on the crude ibuprofen mass. 3) Calculate the percent recovery of pure ibuprofen from the crude. 4) Why does the melting point (70-71)above match neither the enantiomers' nor the racemate's? Does it mean that the substance is impure, or perhaps isn't even ibuprofen at all? (Racemic mixture:75-77C, Enantiomer:52-53C)
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Please answer this question as fast as you can please and tahnk you. I will afterwards write an wonderful review on solving the question. Thank you. You determined experimentally the density of a solution in triplicate. Considering the results what is the %RSD of results? Answer your question with the correct number of significant figures. Please enter answer as a % not in decimal form. Trial 1: 1.014 g/mL Trial 2: 0.914 g/mL Trial 3: 1.190 g/mL
A 0.706 gram sample of copper is carried through the steps of this experiment. At the completion of the last step, 0.400 grams of copper are recovered. What is the percent recovery of the copper metal? Give your answer in in decimal format. When entering units, use proper abbreviated units with proper capitalization. Your Answer:
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