For this problem, we have to calculate the vapor pressure of the solution with 0.5 mol of solute at 275 g hexane (C6H14)
The vapor pressure of a solution prepared by adding a nonvolatile solute to a volatile solvent is calculated using this formula:
We will need the mole fraction of hexane to calculate the vapor pressure of solution.
Mole fraction is defined as:
For this problem, follow the steps
Step 1. Calculate moles of hexane
Step 2. Calculate mole fraction of hexane
Step 3. Calculate the vapor pressure
Step 1. Mole fraction of hexane can be calculated by dividing the moles of hexane by the total moles
Calculate the vapor pressure of a solution prepared by dissolving 0.500 mol of a non-volatile solute in 275 g of hexane (M = 86.18 g/mol) at 49.6°C. P°hexane = 400.0 torr at 49.6°C.
A) 54 torr
B) 154 torr
C) 246 torr
D) 346 torr
E) 400. torr
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What scientific concept do you need to know in order to solve this problem?
Our tutors have indicated that to solve this problem you will need to apply the The Colligative Properties concept. You can view video lessons to learn The Colligative Properties. Or if you need more The Colligative Properties practice, you can also practice The Colligative Properties practice problems.
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Our tutors rated the difficulty ofCalculate the vapor pressure of a solution prepared by disso...as medium difficulty.
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Based on our data, we think this problem is relevant for Professor Wiegand's class at UW-SEATTLE.