How to find the concentration of a unknown molecule?
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Determine the molar concentration of the unknown in the solution from the observed osmotic pressure. Determine the moles of unknown (the solute) from the molarity of the solution and the volume (in liters) of the solution. Determine the molar mass from the mass of the unknown and the number of moles of unknown.
moles of unknown =mass of unknown %molar mass
molar mass =mass of unknown %moles of unknown
moles of unknown =mass of unknown %molar mass
molar mass =mass of unknown %moles of unknown
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