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March 25, 2017

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when calculating stoichiometric relationships in gas reactions using the combined gas law why is it important to convert the volumes and pressure to STP?

  • Chemistry - ,

    Primarily because you know the number of moles a gas occupies at STP and gases react by moles. You can take a shortcut and use only volumes if you have the volumes at STP since they are directly proportional to the number of moles.

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