Question
Asked Feb 20, 2020
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Which solution has a higher vapor pressure at 25 degress Celsius: 20.0g of glucose in 100.0mL of water OR 2.0g of sucrose in 100.0mL of water? Density of water is 1.00g/mL.

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Expert Answer

Step 1

Given information:

  • 20.0g of glucose in 100.0mL of water
  • 2.0g of sucrose in 100.0mL of water
  • Density of water is 1.00g/mL
Step 2

The density of water is given as 1.00 g/mL. The mass of 100.0 mL of water is 100.0 g. The mole of water is calculated as follows:

Chemistry homework question answer, step 2, image 1

Step 3

The molar mass of glucose and sucrose is 180.156 g/mol and 342.3 g/mol respectively. The mole of glucose and sucrose is calculated as follows:

Chemistry homework question answer, step 3, image 1

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