gaseousmolecalculations - What is the formula for the...

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Chapter two: Mole Calculations Probably the most difficult problem in this chapter might deal with atmospheres. It is not common sense to students that equal volumes contain equal molecules. Therefore, a problem like the one below will seem very difficult at first. One atmosphere of A and 3 atmospheres of B are placed in a flask. After the reaction there is no A, one atmosphere of B, and a compound left.
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Unformatted text preview: What is the formula for the compound? The answer it AB 2 . Equal pressures contain equal atoms or molecules. You can actually exchange the word atmosphere with the word atom or molecule. In addition, if one mole of any gas has a volume of 22.4 L at STP, then it must follow that equal volumes contain equal molecules....
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