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The air in the balloon is then heated to 62 degree celsius, causing the balloon to expand to a volume of 4.20x10^3 m^3. What is the ratio of the number of moles of air in the heated balloon to the original number of moles of air in the balloon? (Hint: Openings it the balloon allow air to flow in and out, Thus the pressure in the balloon is always the same as that of the atmosphere)

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