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(a) An ideal gas occupies a volume of 2.6-cm3 at 20�C and atmospheric pressure. Determine the...

(a) An ideal gas occupies a volume of 2.6-cm3 at 20�C and atmospheric pressure. Determine the number of molecules of gas in the container.__________ molecules

(b) If the pressure of the 2.6-cm3 volume is reduced to 1.6 ? 10-11 Pa (an extremely good vacuum) while the temperature remains constant, how many moles of gas remain in the container?_________molecules

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