Convert the temperature of the water from ⁰ C to Kelvin...

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K Lab 14: Ideal Gas Law Experiment: Finding Percent H 2 O 2 with Yeast Data Water Temperature: 23.4 C Barometric Pressure: 753 mm Hg Table 1: Volume Data Initial volume of air (mL) Final volume of air after reaction (mL) Volume of O 2 collected (Final volume - initial volume) 5.7 ml 59.9 ml 54.2 ml Table 2: Reaction Time Data Time reaction started Time reaction ended Reaction time (s) 16:44 16:52 8:00 min Calculations The goal is to find the percentage of hydrogen peroxide in the solution! This can be found by working through the following steps. 1. Convert the temperature of the water from C to Kelvin (K). Use the equation K = + 273. This will be your value for absolute T or the temperature in Kelvin. C
2. If necessary, convert the barometric pressure in the room from mm Hg to atmospheres (atm).
V = 54.2 mL * = 0.0542 L 1 L 1000 mL

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