Asked by Lauren

A solution contains 0.0653g of compound in 8.31g of ethanol. The molarity of the solution is 0.0368m. Calculate the molecular weight of the compound
Answered by drbob222
The molarity of the solution can't be 0.0368 m. It can be 0.0368 molar or it can be 0.0368 molal. Which is it.
Answered by Lauren
sorry my fault it is suppose to be molality
Answered by drbob222
I think you MUST have meant molality.
molality = mols/kg solvent
0.0368 m = mols/0.00831 kg.
Solve for mols = 0.0368 x 0.00831
mols = g/molar mass
You know mols and g, solve for molar mass.
Answered by themba
214 g/mol
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