liamcub4194 liamcub4194
  • 16-01-2020
  • Chemistry
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The mole fraction of water in a solution of sugar in water is equal to 0.942. What is the mole fraction of the sugar?

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thomasdecabooter thomasdecabooter
  • 16-01-2020

Answer:

The mol fraction of sugar is 0.058

Explanation:

Step 1: Data given

Molar mass of water = 18.02 g/mol

Molar mass of sugar = 180.16g/mol

Mol fraction of water = 0.942

Step 2: Calculate mol fraction of sugar in water

Mol fraction = number of moles of compound / total moles

The maximum number of mol fraction will be:

When number of moles = total moles

mol fraction = total moles / total moles = 1

This means the mol fraction of sugar = 1 - mol fraction of water

1.00 - 0.942 = 0.058

The mol fraction of sugar is 0.058

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