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A weather balloon is inflated with helium (He) gas to a volume of 6236mL at an absent temperature of 21.6 celsius and pressure of 1.07 atm.
Once the balloon has reached a higher altitude, the pressure dropped to 0.64 atm and the temperature is now 5.6 celsius.
What is the final volume of the balloon (in L)?
Need answer with an explanation
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