CHEM 103 MODULE 3 (CHEM103)
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PORTAGE LEARNING CHEM 103 MODULE 3 EXAM 2022
- Exam (elaborations) • 6 pages • 2023
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PORTAGE LEARNING CHEM 103 MODULE 3 EXAM 2022
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CHEM 103 Module 3 Exam Questions with Answers | Portage Learning 2023/2024
- Exam (elaborations) • 11 pages • 2023
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Show the calculation of the amount of heat involved if 35.6 g of H2S is reacted with excess O2 to 
yield sulfur dioxide and water by the following reaction equation. Report your answer to 4 
significant figures. 
 2 H2S (g) + 3 O2 (g) → 2 SO2 (g) + 2 H2O (g) ΔH = - 1124 kJ 
Your Answer: 
1) 1 mol H2S = 34.1 g of H2S = 603.2 KJ 
 (35.6 g / 34.1 g) * -603.2 KJ = (1.0439) * (-603.2 KJ) = -629.7 
 2H2S (g) + 3 O2 (g) --> 2 SO2 (g) + 2 H2O (g) H = -1124 KJ 
 reaction uses 35.6 g of H2S = 35.6 /...
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CHEM 103 MODULE 3 EXAM
- Exam (elaborations) • 6 pages • 2022
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- $15.49
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CHEM 103 
MODULE 3 EXAM 2022 
Click this link to access the Periodic Table. This may be helpful throughout 
the exam. 
A reaction between HCl and NaOH is being studied in a styrofoam coffee cup 
with NO lid and the heat given off is measured by means of a thermometer 
immersed in the reaction mixture. Enter the correct thermochemistry term 
to describe the item listed. 
1. The type of thermochemical process 
2. The amount of heat released in the reaction of HCl with NaOH 
1. Heat given off = Exo...
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