What is the molality of a D-glucose solution prepared by dissolving 36.0 g of D-glucose, C6H12O6, in 125.9 g of water

1.59 molal

Explanation:

The definition of molality is:

So first we calculate the moles of solute (D-glucose, C₆H₁₂O₆), using its molar mass:

Then we convert grams of water into kg:

Finally we calculate the molality:

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