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Chemistry help Please!?
okay so i've been really sick and missed alot of school, i have a chemistry project due and im really confused on how to get the answer. please help!
A 20.0 liter cylinder of helium gas is confined at a pressure of 42.5 atmospheres. If all of the helium is used to fill balloons at a pressure of 1.02 atmospheres, determine the total volume of balloons that could be filled at constant temperature.
* could you try your best to show me how you did it so i can actually learn, thanks!
3 Answers
- GardeniaLv 69 years agoFavorite Answer
This is a simple application of Boyle's law: P1/P2 = V2/V1
I am not sure how familiar you are with Boyle's law, but I will explain the answer based on this law because the process is taking place at a constant temperature.
Using the formula above, plug in the givens, which are:
P1 = 42.5 atm
P2 = 1.02 atm
V1 = 20.0 L
Solving for V2:
V2 = (42.5 atm/1.02 atm) * 20.0 L
V2 = 833 L, which is the total volume of balloons that could be filled at constant T
- peanutsfan123Lv 49 years ago
P1V1 = P2V2
P1 = 42.5 atm
V1 = 20.0 liter
P2 = 1.02 atm
V2 = ((42.5)(20.0))/1.02 = 833 liters
This is Boyle's Law. Pressure and volume are inversely related, with the number of moles of gas and temperature constant.
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