di6X cqus amage, can cas ostbiteT solt in W vervtalatta voo mass of a CO2 gas sa
ID: 1032689 • Letter: D
Question
di6X cqus amage, can cas ostbiteT solt in W vervtalatta voo mass of a CO2 gas sample collected using the Procedure described in this hdl 2. A student determined t he used a Mylar ballon in place of the Ziploeb bag. The student collected the W following data: mass of empty Mylar balloon and fastener, g mass of Mylar balloon, fastener, and CO2 gas, g volume (capacity) of Mylar balloon, mL barometric pressure, in. Hg laboratory temperature, C 3.03 3.99 1730 28.96 au (a) Express the pressure in atmospheres. Note: 1 atm -29.92 in. Hgl 28.910 (b) Express the temperature in kelvin. T 2lc 224 213-2454 () Express the volume of the balloon in liters. 1130 11,730 L (d) Determine the number of moles of CO2 in the inflated balloon. n PV (0.9)01.130 RT )Explanation / Answer
e) Mass of air displaced by inflated balloon = mass of CO2 inside the balloon. The mass of CO2 = number of moles ×molar mass of CO2 = 0.07 mole× 44.01 g/ mole= 3.08 grams
f)
Measured mass of CO2 inside balloon = 3.99-3.03 g = 0.96 g
g)
Actual mass of CO2 = measured mass of CO2 = 0.96 g
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