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11 Nov 2019
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Lab 8: Percentage of Gases in Air and Breath Andrewsky (adapted from Centauri and Lucas) CHEM&121 TO TURN IN You will turn in this handout with all of the data, calculations, and responses to post-lab questions recorded on this handout. Staple your Purpose Statement and Procedural Outline to the back of this lab handout as well as any additional pages you completed work on. If additional pages were handout to direct the instructor to find this additional work on these scrap pages. necessary, write a note within the Acknowledgments: This lab is adapted from a similar lab from Tacoma Community College and one prepared by Lauri Centauri at GRC PRE-LAB QUESTIONS (2 pts) Write a purpose statement and procedure for this lab on separate sheet(s) of paper (2 pts) Air is a mixture of 21%On 78% N, and 1% Ar by volume. What is the partial pressure (in mm Hg) of each gas at sea level, where the total pressure is 760 mm Hg? Report each answer to one decimal place 1. 2. 3. ( pt) If the room has a temperature of 20.5°C, what is this temperature expressed in Kelvins? Report your answer to one decimal place 4. (I pt) When using the ideal gas law, what unit must be used for pressure and temperature? Hint: look at the ideal gas law constant 5. Assume that Mr. Andrewsky exhales 24.0 g of pure carbon dioxide in an hour a. (2 pts) How many moles of carbon dioxide are exhaled? Report to three significant figures b. (2 pts) What volume (in liters) does this amount of carbon dioxide gas occupy at 1.00 atm and 310 K? Report to three significant figures
Help me
Lab 8: Percentage of Gases in Air and Breath Andrewsky (adapted from Centauri and Lucas) CHEM&121 TO TURN IN You will turn in this handout with all of the data, calculations, and responses to post-lab questions recorded on this handout. Staple your Purpose Statement and Procedural Outline to the back of this lab handout as well as any additional pages you completed work on. If additional pages were handout to direct the instructor to find this additional work on these scrap pages. necessary, write a note within the Acknowledgments: This lab is adapted from a similar lab from Tacoma Community College and one prepared by Lauri Centauri at GRC PRE-LAB QUESTIONS (2 pts) Write a purpose statement and procedure for this lab on separate sheet(s) of paper (2 pts) Air is a mixture of 21%On 78% N, and 1% Ar by volume. What is the partial pressure (in mm Hg) of each gas at sea level, where the total pressure is 760 mm Hg? Report each answer to one decimal place 1. 2. 3. ( pt) If the room has a temperature of 20.5°C, what is this temperature expressed in Kelvins? Report your answer to one decimal place 4. (I pt) When using the ideal gas law, what unit must be used for pressure and temperature? Hint: look at the ideal gas law constant 5. Assume that Mr. Andrewsky exhales 24.0 g of pure carbon dioxide in an hour a. (2 pts) How many moles of carbon dioxide are exhaled? Report to three significant figures b. (2 pts) What volume (in liters) does this amount of carbon dioxide gas occupy at 1.00 atm and 310 K? Report to three significant figures
Reid WolffLv2
11 Jul 2019