A bottle has fixed 5.0 L volume .its filled with oxygen gas, intially at temperature of 295.0k and a pessure of 250.0atm 1) calculate the mass of oxygen gas inside the bottle  2)suppose the oxygen gas is replaced by an equal mass of helium gas . if the temperature is maintained at 295.0k .calculate the pessure in the bottle  [Diven atomic mass of oxygen gas =32.0g/mol, atomic mass of helium gas =4.0g/mol, 1.0L=1*10-3 and 1.0 atm = 1.013*10 5Pa]

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Q: Related rates

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Diatomic Gas

Molecule, is a collection of two or more atoms together (which constitute the smallest observable unit) into a pure material. There are some ways to represent the structure of a molecule. Factor symbols represent atoms in Lewis structures, and dots represent electrons that accompany them. A pair of mutual electrons (covalent bond) may be represented by a single dash. The ball-and-stick model depicts the spatial structure of the atoms better.