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Problem- When 5.07 g of an unknown non-electrolyte is dissolved in 50.0 g of benzene, the boiling point the boiling point increased to 83.8 degrees C from 80.1 degrees C. If the Kbp of the solvent is 2.53 K/m, calculate the molar mass of the unknown solute.
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what is the mole fraction of ethanol, C2H5OH, in an aqueous solution in which the ethanol concentration
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a student uses a balance to determine the mass of an object as 12.28 grams. the correct mass of the object is 12.45
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