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39 solutions

Mole Fraction

Q. A 24.1-g mixture of nitrogen and carbon dioxide is found to occupy a volume of 15.1 L when measured at 870.2 mmHg and 31.2oC. What is the mole fraction of nitrogen in this mixture?

Solved • Nov 9, 2019

Mole Fraction

Q. If 2.00 g of helium gas and 5.29 g of oxygen are mixed together, what is the mole fraction of helium in the solution?

Solved • Oct 25, 2019

Mole Fraction

Q. Calculate the mole fraction of NaCl in a solution prepared by dissolving 117 g NaCl in 1.11 kg H2O.

Solved • Oct 25, 2019

Mole Fraction

Q. A solution is prepared by mixing 0.03 mol CH2Cl2 and .05 mol Ch2Br2 at 25C. Assuming the solution is ideal; calculate the composition of the vapor (in terms of mole fraction) at 25C. At 25C, the vapor pressures of pure CH2Cl2 and CH2Br2 are 133 and 11.4 torr, respectively

Solved • Oct 24, 2019

Mole Fraction

Q. A 7.00 l tank at 29.9 degrees C is filled with 4.40 g of sulfur tetrafluoride gas and 20.0 g of dinitrogen monoxide gas. You may 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 significantdigits.

Solved • Sep 27, 2019

Mole Fraction

Q. 9. Find the mole fraction of each substance in a solution made with 80.0g of benzene and 15.0g of heptane.

Solved • Sep 25, 2019

Mole Fraction

Q. 1. Find the mole fraction of magnesium sulfate when 20g of magnesium sulfate is dissolved in 600mL of water.

Solved • Sep 25, 2019