porcow20 porcow20

26-05-2021
Chemistry

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What is the mass of 2.15 liters of N2 gas at STP?

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waltergenius waltergenius

26-05-2021

Explanation:

mole number =mass/molar mass

mass=mole number × molar mass

mass= (volume of gas/volume at stp)molar mass

mass=(2.15/22.4)28

mass=2.69g

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