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A student placed 17.0 g of glucose (C_6H_{12}O_6) in a volumetric flask, added enough water to dissolve the glucose by swirling, then carefully added additional water until the 100 mL mark on the neck of the flask was reached. The flask was then shaken until the solution was uniform. A 55mL sample of this glucose solution was diluted to 0.500L. How many grams of glucose are in 100 mL of the final solution?

Express your answer numerically in grams.

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  1. 17.0 g in 100 mL.
    55 mL taken diluted to 500 mL.

    So the glucose placed in the 500 mL flask is 17.0 x (55/100) = ??
    Therefore, the concn (grams/mL) in the 500 mL flask is ??/500 mL. Multiply by 100 if you want the grams/100 mL.

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