If a solution is concentrated to the point where no more solute will dissolve in the solvent, it is said to be saturated. To determine the volume of stock solution needed, divide the number of moles of glucose by the molarity of the stock solution.
A concentrated solution is one in which there is a large amount of solute in a given amount of solvent. To define a solution precisely, we need to state its concentration: how much solute is dissolved in a certain amount of solvent.
Obtain the mass of glucose needed by multiplying the number of moles of the compound by its molar mass. Answer 7. Note that the volume of the solvent is not specified. Using mass percent as a conversion can be useful in this type of problem.
Remember that diluting a given quantity of stock solution with solvent does not change the number of moles of solute present. Glucose has a molar mass of However, the solute concentration may also be expressed in moles or units of volume. Dilute solutions contains a small amount of solvent compared with the amount of solvent.
Strict Definition of Concentration In the strictest sense, not all means of expressing the composition of a solution or mixture are termed "concentration". Therefore, you are diluting the concentrated juice. Dilutions are made by adding solvent to a more concentrated solution.