Question

what is mole fraction of methanol in solution containing 3.2g of methanol in 18g of h2O..
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Answer 1

Explanation:

Methanol = CH4 O or CH3 OH

molar mass of methanol: 12+4+16=32

=> 3.2 gram = 0.1 moles

18 grams of water => 1 mole of water as molar mass of water is 18.

total number of moles in the solution = 1.1

so molar fraction of methanol in the solution = 0.1 /1.1 = 9.99%

of 0.0999

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Answer 2

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