What is the molality of sucrose (C12H22O11 , 342.30 g/mol) present in soda at a concentration...

Question

Question

What is the molality of sucrose (C₁₂H₂₂O₁₁ , 342.30 g/mol) present in soda at a concentration of 13.5% sucrose by mass?

Answer 1

Answer #1

13.5 % sucrose by mass means 13.5 g sucrose present in 100 g solution

mass of solvent = 100 - 13.5 = 86.5 g

molality = (W /MW) (1000 / mass of solvent in g)

molality = (13.5 / 342.30) (1000 / 86.5)

molality = 0.456 m

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Answer 2

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