Since the gases are ideal, we assume they are independent of
each other AND we assume they follow the equation of state PV =
nRT
BF3:
n = (7.95 g / 67.82 g/mol) = 0.117 mol
PV = nRT
or, P = nRT / V
or, P = [ (0.117 mol) x (0.08206 L atm mol-1
K-1) x (17.8 + 273.15) K ] / (6.00 L)
= [ (0.117 mol) x
(0.08206 L atm mol-1 K-1) x (290.95 K) ] /
(6.00 L)
= 0.47 atm
SF6:
n = (5.67 g / 146.06 g/mol) = 0.039mol
PV = nRT
or, P = nRT / V
or, P = [ (0.039 mol) x (0.08206 L atm mol-1
K-1) x (17.8 + 273.15) K ] / (6.00 L)
= [ (0.039 mol) x
(0.08206 L atm mol-1 K-1) x (290.95 K) ] /
(6.00 L)
= 0.16 atm
Total pressure in the tank = partial pressure of BF3 + partial
pressure of SF6
= 0.47 atm + 0.16 atm
= 0.63 atm
Total moles = 0.117 mol (BF3) + 0.039 mol SF6
=
0.156 mol
mole fraction BF3 = 0.117 mol / 0.156 mol = 0.75
mole fraction SF6 = 0.039 mol / 0.156 mol = 0.25
Calculating partial prescure in a gas mixture A 6.00 L tank at 17.8 °C is filled...
A 6.00 L tank at 2.56 °C is filled with 5.50 g of sulfur hexafluoride gas and 13.0 g of dinitrogen difluoride gas. You can assume both gases behave as ideal gases under these conditions. Calculate the mole fraction and partial pressure of each gas, and the total pressure in the tank. Be sure your answers have the correct number of significant digits. mole fraction: sulfur hexafluoride partial pressure: atm x 6 ? mole fraction: dinitrogen difluoride partial pressure: atm...
A 5.00 L tank at 6.27 °C is filled with 3.97 g of dinitrogen difluoride gas and 3.91 g of sulfur tetrafluoride gas. You can assume both gases behave as ideal gases under these conditions. Calculate the partial pressure of each gas, and the total pressure in the tank. Be sure your answers have the correct number of significant digits. dinitrogen difluoride partial pressure: 0. sulfur tetrafluoride partial pressure: X 5 ? Total pressure in tank: atm A 8.00 L...
Calculating mole fraction in a gas mixture A8.00 L tank at 24.0 °C is filled with 18.2 g of sulfur tetrafluoride gas and 7.54 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 X 5 ? sulfur tetrafluoride boron t oride
O GASES Calculating mole fraction in a gas mixture A 8.00 L tank at 19.8 °C is filled with 11.0 g of chlorine pentafluoride gas and 7.97 g of boron trifluoride gas. You can assume both gases behave as ideal gases under these conditions. Calculate the mole fraction of each gas. Be sure each of your answer entries has the correct number of significant digits. mole fraction gas chlorine pentafluoride boron trifluoride
A 10.0 L tank at 2.59 °C is filled with 6.79 g of boron trifluoride gas and 2.90 g of carbon monoxide gas. You can assume both gases behave as ideal gases under these conditions. Calculate the mole fraction and partial pressure of each gas, and the total pressure in the tank. Be sure your answers have the correct number of significant digits. mole fraction: boron trifluoride partial pressure: x 5 ? mole fraction: carbon monoxide partial pressure: Total pressure...
Calculating partial pressure in a gas mixture A 8.00 L tank at 3.01 °C is filled with 2.19 g of carbon dioxide gas and 4.83 g of chlorine pentafluoride gas. You can assume both gases behave as ideal gases under these conditions. Calculate the mole fraction and partial pressure of each gas, and the total pressure in the tank. Round each of your answers to 3 significant digits. mole fraction: carbon dioxide partial pressure 1x S ? mole fraction: chlorine...
A 5.00 L tank at 2.04 °C is filled with 3.27 g of sulfur hexafluoride gas and 9.57 g of dinitrogen difluoride gas. You can assume both gases behave as ideal gases under these conditions. Calculate the mole fraction and partial pressure of each gas, and the total pressure in the tank. Be sure your answers have the correct number of significant digits. mole fraction: sulfur hexafluoride partial pressure: Tx 5 ? mole fraction: dinitrogen difluoride partial pressure: Total pressure...
ANSWER NEEDS TO BE IN 3 SIGNIFICANT FIGURES O GASES Calculating partial pressure in a gas mixture A 7.00 L tank at 6.66 °C is filled with 7.88 g of chlorine pentafluoride gas and 7.24 g of boron trifluoride gas. You can assume both gases behave as ideal gases under these conditions. Calculate the mole fraction and partial pressure of each gas, and the total pressure in the tank. Round each of your answers to 3 significant digits. mole fraction:...
A 9.00 L tank at -10.2 °C is filled with 15.9 g of sulfur tetrafluoride gas and 2.60 g of boron trifluoride gas. You can assume both gases behave as ideal gases under these conditions. Calculate the mole fraction of each gas. Be sure each of your answer entries has the correct number of significant digits. gas mole fraction 1 x s ? sulfur tetrafluoride boron trifluoride
A 8.00 L tank at 2.73°C is filled with 15.4g of sulfur tetrafluoride gas and 19.5g of sulfur hexafluoride gas. You can assume both gases behave as ideal gases under these conditions. Calculate the mole fraction and partial pressure of each gas, and the total pressure in the tank. Be sure your answers have the correct number of significant digits