LA07_CHE-128-mar14 - LABORATORY REPORT I PURPOSE(10 POINTS Gases can vary a lot according the element and its chemical properties all the gases more or

# LA07_CHE-128-mar14 - LABORATORY REPORT I PURPOSE(10 POINTS...

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LABORATORY REPORT I. PURPOSE (10 POINTS) Gases can vary a lot according the element and its chemical properties; all the gases more or less obey the gas laws. The gas laws deal with how gases behave with respect to pressure, volume, temperature, and amount. Gases are the only state of matter that can be compressed very tightly or expanded to fill a very large space. II. TEST DATA (15 POINTS) Part 1: Ideal Gas Law—Finding Percent H 2 O 2 with Yeast Volume of O 2 collected: .002 L Total reaction time: 6:05 minutes Temperature of water (in K): 11 C ° Pressure (in atm): 1 atm Volume of O 2 collected (in L): .027 L Actual moles of O 2 collected: 1.09 mol Theoretical moles of O 2 (assume 100% H 2 O 2 density = 1.02 g/mL): Part 2: Charles’s Law—Effect on Temperature on Balloon Volume Temperatue, o C, of water (initial): 11 C ° Circumference of balloon, cm (initial): 31 cm Temperature, o C, of water (final): 40 C° Circumference of balloon, cm (final): 36 cm III.CALCULATIONS (15 POINTS) Part 1: Ideal Gas Law—Finding Percent H 2 O 2 with Yeast Volume of O 2 collected: .002 L

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• Spring '15
• RICHARDPENDARVIS
• Law—Finding Percent H2O2

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