Use the heat equation to calculate the energy, in joules andcalories, for each of the following (see the table):(Figure 1)Part Elost when 12.3 g of ethanol, C2 H; OH, cools from 50.0 °C to -42.0°CExpress your answer using three significant figures.JSubmitPrevious AnswersCompleted; correct answer withheld by instructorPart FFigure1 of 1lost when 12.3 g of ethanol, C2 H5OH, cools from 50.0 °C to -42.0°CSubstancecal/g °CJ/g °CExpress your answer using three significant figures.ElementscalAluminum, Al(s)0.2140.897Copper, Cu(s)0.09200.385SubmitPrevious AnswersGold, Au(s)0.03080.129Iron, Fe(s)0.1080.452Silver, Ag(s)0.0562Completed; correct answer withheld by instructor0.235Titanium, Ti(s)0.1250.523CompoundsPart GAmmonia, NH3(g)0.4882.04Ethanol, C,H;OH(!)0.5882.46lost when 165 g of iron cools from 118° C to 51 °CSodium chloride, NaCI(s)0.2070.864Express your answer using two significant figures.Water, H,0(I)1.004.184Water, H,0(s)0.4852.03J

Answered: Image /qna-images/answer/302c6aa2-a236-4ee1-905f-6bf933bb6052.jpg

lost when 12.3 g of ethanol, C2 H5 OH, cools from 50.0 °C to -42.0° C Express your answer using three significant figures. J Submit Previous Answers Completed; correct answer withheld by instructor • Part F lost when 12.3 g of ethanol, C2 H5 OH, cools from 50.0 °C to -42.0°C Express your answer using three significant figures. cal Submit Previous Answers Completed; correct answer withheld by instructor Part G lost when 165 g of iron cools from 118°C to 51 °C Express your answer using two significant figures. J

lost when 12.3 g of ethanol, C2 H5 OH, cools from 50.0 °C to -42.0° C Express your answer using three significant figures. J Submit Previous Answers Completed; correct answer withheld by instructor • Part F lost when 12.3 g of ethanol, C2 H5 OH, cools from 50.0 °C to -42.0°C Express your answer using three significant figures. cal Submit Previous Answers Completed; correct answer withheld by instructor Part G lost when 165 g of iron cools from 118°C to 51 °C Express your answer using two significant figures. J

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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Safari File Edit View History Bookmarks Window Help Mon Sep 28 3:13 PM session.masteringchemistry.com Test Chapter 5 Hide Timer Item 18 18 of 20 v Complete I Review I Constants I Periodic Table What is -13 °F in degrees Celsius and kelvins? Part A Express your answer using two significant figures. T = 25 °C %3D Submit Previous Answers Incorrect; correct answer withheld by instructor Part B Express your answer using three significant figures. T = 248 K %3D Submit Previous Answers Correct Provide Feedback Next > 00
Report 2 decimal places for all your answers. Do NOT include units in your answer. BaCl₂ H₂O 208.23 Mass of anhydrous BaCl₂ (amu) Mass of H₂O molecules in Hydrate (amu) Mass of Hydrate (amu) Percent H₂O in Hydrate (%) O BaCl 208.23 0.00 At n 208.23 plete the table. 0.00 % 18.02 226.25 7.97% Select one: O a. BaCl, • H2O O b. BaClz • 2 H2O O c. BaCl2 • 3 H2O O d. The data is inconclusive: it could be either BaCl₂ H₂O OR BaCl₂.2 H₂O O e. The data is inconclusive: it could be either BaCl₂ 2 H₂O OR BaCl₂ 3 H₂O BaCl₂ 2 H₂O 208.23 51°F 36.04 244.27 14.8 0 % Compare the experimental percent water you calculated for the barium chloride hydrate in the Question 6 in this assignment (above) with the theoretical percent water values calculated from the possible formulas in the table above. Do you think that the formula for hydrate is BaCl₂ H₂O, BaCl₂ 2 H₂O, or BaCl₂3 H₂O? End BaCl₂ 3 H₂O 208.23 PgUp 54.06 262.29 20.6 40) % J 6 Manage 9:44 PM 10/9/2022 PgDn
Sublimation: 670 Pergram A C E D F 8Ocal Solid Gas Liquid G eva Poratia H Condensatia
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Wine goes bad soon after opening because the ethanol (CH₂CH₂OH) in it reacts with oxygen gas (O₂) from the air to form water (H₂O) and acetic acid (CH₂COOH), the main ingredient of vinegar. What mass of ethanol is consumed by the reaction of 1.30 g of oxygen gas? Be sure your answer has the correct number of significant digits. X G s
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