Chemistry
Chemistry
10th Edition
ISBN: 9781305957404
Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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Question
Use the heat equation to calculate the energy, in joules and calories, for each of the following (see the table): (Figure 1) Part E lost when 12.3 g of ethanol, C2 H; 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 Figure 1 of 1 lost when 12.3 g of ethanol, C2 H5OH, cools from 50.0 °C to -42.0°C Substance cal/g °C J/g °C Express your answer using three significant figures. Elements cal Aluminum, Al(s) 0.214 0.897 Copper, Cu(s) 0.0920 0.385 Submit Previous Answers Gold, Au(s) 0.0308 0.129 Iron, Fe(s) 0.108 0.452 Silver, Ag(s) 0.0562 Completed; correct answer withheld by instructor 0.235 Titanium, Ti(s) 0.125 0.523 Compounds Part G Ammonia, NH3(g) 0.488 2.04 Ethanol, C,H;OH(!) 0.588 2.46 lost when 165 g of iron cools from 118° C to 51 °C Sodium chloride, NaCI(s) 0.207 0.864 Express your answer using two significant figures. Water, H,0(I) 1.00 4.184 Water, H,0(s) 0.485 2.03 J
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Transcribed Image Text:Use the heat equation to calculate the energy, in joules and calories, for each of the following (see the table): (Figure 1) Part E lost when 12.3 g of ethanol, C2 H; 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 Figure 1 of 1 lost when 12.3 g of ethanol, C2 H5OH, cools from 50.0 °C to -42.0°C Substance cal/g °C J/g °C Express your answer using three significant figures. Elements cal Aluminum, Al(s) 0.214 0.897 Copper, Cu(s) 0.0920 0.385 Submit Previous Answers Gold, Au(s) 0.0308 0.129 Iron, Fe(s) 0.108 0.452 Silver, Ag(s) 0.0562 Completed; correct answer withheld by instructor 0.235 Titanium, Ti(s) 0.125 0.523 Compounds Part G Ammonia, NH3(g) 0.488 2.04 Ethanol, C,H;OH(!) 0.588 2.46 lost when 165 g of iron cools from 118° C to 51 °C Sodium chloride, NaCI(s) 0.207 0.864 Express your answer using two significant figures. Water, H,0(I) 1.00 4.184 Water, H,0(s) 0.485 2.03 J
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