Answer to Question #340269 in General Chemistry for yel

Question

78.0 g of nonionizing C6H12O6 are dissolved in 300 g of H2O the Kb = 0.512 0C/m. What is the molar mass of water C6H12O6 ?

Answer 1

∆T = imK

∆T = change in temperature

i = van't Hoff factor = 1 for glucose since it does not ionize or dissociate. It is a single particle.

m = molality = moles solut/kg solvent = (78.0 g/180 g/mol) / 0.3 kg = 1.44 m

the molar mass of water = 18 g/mol

the molar mass of C₆H₁₂O₆ = 180 g/mol