Problem: Consider two solutions, one formed by adding 10 g of glucose (C6 H12 O6 ) to 1 L of water and the other formed by adding 10 g of sucrose (C12 H22 O11 ) to 1 L of water.Calculate the vapor pressure for the second solution at 20 oC. (The vapor pressure of pure water at this temperature is 17.5 torr.)

FREE Expert Solution

We are asked to calculate the vapor pressure for the second solution at 20 oC. 


Recall :

Psolution = XsolventPoSolvent


We go through the following steps to solve the problem:

Step 1. Calculate the moles water

Step 2. Calculate the moles of sucrose (C12 H22 O11 )

Step 3. Calculate the mole fraction of water

Step 4. Calculate the vapor pressure of  the solution


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Problem Details

Consider two solutions, one formed by adding 10 g of glucose (C6 H12 O6 ) to 1 L of water and the other formed by adding 10 g of sucrose (C12 H22 O11 ) to 1 L of water.

Calculate the vapor pressure for the second solution at 20 oC. (The vapor pressure of pure water at this temperature is 17.5 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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