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24 June, 12:39

How many molecules of glucose are in 1 l of a 100 mm glucose solution?

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  1. 24 June, 13:08
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    Answer is: 6.022·10²² molecules of glucose.

    c (glucose) = 100 mM.

    c (glucose) = 100 · 10⁻³ mol/L.

    c (glucose) = 0.1 mol/L; concentration of glucose solution.

    V (glucose) = 1 L; volume of glucose solution.

    n (glucose) = c (glucose) · V (glucose).

    n (glucose) = 0.1 mol/L · 1 L.

    n (glucose) = 0.1 mol; amount of substance.

    N (glucose) = n (glucose) · Na (Avogadro constant).

    N (glucose) = 0.1 mol · 6.022·10²³ 1/mol.

    N (glucose) = 6.022·10²².
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