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saplinglearning.com Home UnivofDaytonMail UD Admission Twitter What data will be recorded upon compl Which of the follow University of Dayton CHM 123L-Gen... ayton -CHM 123L -Gen Chemistry Lab- Fall17- SWAVEY > Activities and Due Dates > f Magnesium Pre-Lab 0 12/5/2017 11:30 AM A 2.6/10 Gradebo Print nlotator End Periodic Table Question 2 of 10 Map Sapling Learning A sample of nitrogen gas was collected via water displacement. Since the displacement, the sample is saturated with water vapor if the total pressure of the mixture at 21 is 1 83 atm. what is the partial pressure of nitrogen? The vapor pressure of water at 21 is 18.7 mm Hg. was collected via water Number atm O Previous ® Give Up & View Solution Hint Check Answer ) Next Exit

Explanation / Answer

According to Dalton's law of partial pressures

PTotal=PN2 + PH2O =1.83 atm

PH2O = 18.7 mm Hg = 18.7/760 = 0.025 atm.

PN2 = PTotal - PH2O = 1.83 -0.025 = 1.805 atm.

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