Asked Nov 24, 2019

A solution contains 0.0653 g of a compound in 8.31 g of ethanol. The molality of the solution is 0.0368 m. Calculate the molecular mass of the compound. 


Expert Answer

Step 1

Molality and mole are given by,


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moles of solute Molality= kgof solvent mass mole= Mole cular mass

Step 2

Let substitute the given vales in molality equation to get moles of solute then the mo...


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moles of solute kgof solvent Molality mole=Molalityxkgof solvent 0.0368mx0.00831kg 0.0003058 mol mass mole= Molecular mass 0.0653g 0.0003058mol 213.53 g/mo


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