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

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Chemistry

Myers

28 August, 14:36

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

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Answers (1)

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Gaige · Answer 1

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.