Module 6 Unit 1 Assignment A

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Fanshawe College *

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MI-JUN ACE

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Mechanical Engineering

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Jan 9, 2024

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doc

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MODULE 6 UNIT 1 Assignment Part A By: Connie Warburton Answers must include calculations. 1. Some hydrogen gas is collected over water at 20.0°C. The partial pressure of hydrogen is 98.99 kPa. What is the barometric (total) pressure at the time the gas is collected? (2 marks) Pwater = 98.99 kPa – 2.34 kPa = 96.65 kPa Ptotal = Pwater + PHydrogen Ptotal = 96.65 kPa + 98.99 kPa Ptotal = 195.64 kPa 2. Helium gas is collected over water at 25°C. What is the partial pressure of the helium, given that the barometric pressure is 99.99 kPa? (2 marks) PHelium = 99.99 kPa – 3.17 kPa = 96.82 kPa 3. 690.0 mL of carbon dioxide are collected over water at 26.0 °C and a total pressure of 96.7 kPa. What is the volume of dry carbon dioxide? ( 4 marks ) Pwater = 3.26 kPa Ptotal = 96.7 kPa Vtotal = 690.0 mL PCO 3 = 96.7 kPa – 3.26 kPa = 93.34 kPa VCO 2 = 690.0 mL CO 2 x 93.34 kPa ÷ 96.7 kPa VCO 2 = 666.0248190279 VCO 2 = 666.0 mL 4. A sample of oxygen collected over water when the atmospheric pressure was 101.5 kPa and the room temperature, 24 °C occupied 105.8 mL. What would be the volume of this dry gas (4 marks) Pwater = 2.98 kPa Ptotal (atm) = 101.5 kPa Vtotal = 105.8 mL Poxygen = 101.5 kPa – 2.98 kPa = 98.52 kPa Voxygen = 105.8 mL x 98.52 kPa ÷ 101.5 kPa Voxygen = 102.6937536946 Voxygen = 102.7 mL 1
Total : 12 marks Submission Instructions Submit your assignment using the drop box on the Assignment page for this unit. Remember to include references. 2
References: Fanshawe College (2023) “Module 6 unit 1 presentation” retrieved from https://olmoodle.ontariolearn.com/mod/scorm/player.php? a=8782¤torg=articulate_rise&scoid=17774&sesskey=UyugQgN7Bq& display=popup&mode=normal Fanshawe College (2023) “Module 6 unit 1 vapor pressure chart” retrieved from https://olmoodle.ontariolearn.com/mod/scorm/player.php? a=8782¤torg=articulate_rise&scoid=17774&sesskey=UyugQgN7Bq& display=popup&mode=normal 3
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