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MrMuchimi
3 years ago
13

Please help me out here please

Chemistry
2 answers:
zepelin [54]3 years ago
3 0
I would say G sorry if it’s not right
Mariulka [41]3 years ago
3 0
I believe it’s g also, when plates diverge (meaning they separate) And they go away from each other so as they push apart magma from the core of the earth rises and that’s how volcanoes are formed
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Answer:

Mole fraction H₂O → 0.72

Mole fraction C₂H₅OH → 0.28

Explanation:

By the mass of the two elements in the solution, we determine the moles of each:

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25 g . 1 mol / 46 g = 0.543 moles of ethanol (solvent)

Mole fraction solute = Moles of solute / Total moles

Mole fraction solvent = Moles of solvent / Total moles

Total moles = Moles of solute + Moles of solvent

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Mole fraction H₂O = 1.39 / 1.933 → 0.72

Mole fraction C₂H₅OH= 0.543 / 1.933 → 0.28

Remember that sum of mole fractions = 1

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