A 7.00 L tank at 12.5 °C is filled with 12.5 g of dinitrogen difluoride gas and 19.4 g of boron trifluoride gas. You can assume both gases behave as ideal gasesunder these conditions.Calculate the mole fraction of each gas. Round each of your answers to 3 significant digits.mole fractiongasS?dinitrogen difluorideboron trifluorideArExplanationCheck© 2019 McGraw-Hill Education. All Rights Reserved.Terms of UsePrivacye11:13 PMOType here to search99+Pxp12/3/2019hpBaf10IIf9insprt scf8fi1f12f6f5pg upendf4homedeleteesc&@2$#numOCO7backspace6135lockIILO26

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Asked Dec 4, 2019
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A 7.00 L tank at 12.5 °C is filled with 12.5 g of dinitrogen difluoride gas and 19.4 g of boron trifluoride gas. You can assume both gases behave as ideal gases
under these conditions.
Calculate the mole fraction of each gas. Round each of your answers to 3 significant digits.
mole fraction
gas
S
?
dinitrogen difluoride
boron trifluoride
Ar
Explanation
Check
© 2019 McGraw-Hill Education. All Rights Reserved.
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11:13 PM
OType here to search
99+
Pxp
12/3/2019
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Ba
f10
II
f9
ins
prt sc
f8
fi1
f12
f6
f5
pg up
end
f4
home
delete
esc
&
@
2
$
#
num
O
CO
7
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6
1
3
5
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II
LO
26
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A 7.00 L tank at 12.5 °C is filled with 12.5 g of dinitrogen difluoride gas and 19.4 g of boron trifluoride gas. You can assume both gases behave as ideal gases under these conditions. Calculate the mole fraction of each gas. Round each of your answers to 3 significant digits. mole fraction gas S ? dinitrogen difluoride boron trifluoride Ar Explanation Check © 2019 McGraw-Hill Education. All Rights Reserved. Terms of Use Privacy e 11:13 PM OType here to search 99+ Pxp 12/3/2019 hp Ba f10 II f9 ins prt sc f8 fi1 f12 f6 f5 pg up end f4 home delete esc & @ 2 $ # num O CO 7 backspace 6 1 3 5 lock II LO 26

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Step 1

To calculate the mole fraction of each gas, first it is required to calculate the number of moles of each gas present, which can be done as,

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Given mass No. of moles Molecular Mass Molecular mass of N2F2 = 66 g Molecular mass of BF3 = 68 g

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Step 2

The mass of N2F2 is given as 12.5 g and that of BF3 is 19.4 g. T...

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Given mass No. of moles of N,F2 Molecular Mass 12.5 No. of moles of N,F2 = 66 No. of moles of N,F2 = 0.189 19.4 No. of moles of BF3 68 No. of moles of BF3 = 0.285

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