Question: Ultra High Vacuum is defined as having a pressure below 107Pa. Such extremely low vacuum is very hard to achieve (the walls of the chamber,

Ultra High Vacuum is defined as having a pressure below 107Pa. Such extremely low vacuum is very hard to achieve (the walls of the chamber, for example, must be baked to remove trace gases and minimize outgasing). How many atoms are left in a cubical chamber 1cm by 1cm by 1cm at 107Pa and DC? (within 5% accuracy) 4.405*10A(17) i ll! What is the root-mean-square speed of nitrogen molecules inside of an oven warmed up to 350F? Answer in m/s. (within 5% accuracy)

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