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OpenStudy (anonymous):
A 25.0 L balloon is filled with 2.75 mol of helium. If the helium leaks out at the rate of 0.105 mol/hr, what is the volume of the balloon after 12.0 hr? Assume the pressure and temperature don’t change.
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OpenStudy (jfraser):
you know the rate of the leak, and you know the time, so find the total number of moles that escape.\[\frac{0.105mol}{\cancel{hr}}* 12\cancel{hr}\]
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