Question

Express the concentration of a 0.0100 M aqueous solution of fluoride, F–, in mass percentage and in parts per million. Assume the density of the solution is 1.00 g/mL.

Answer 1

Find the mass of the solution and of the solute.

Useful formulas:

\(Molarity=\dfrac{n_{solute}}{L_{solution}}\)

\(moles=\dfrac{mass}{Molar~mass}\)

\(density=\dfrac{mass}{Volume}\)


for the second part: 1 mg/mL = 1 ppm

Answer 2

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