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Concentration of Solutions and Molarity - Denton ISD - calculating osmolarity of iv solution


Concentration of Solutions and Molarity - Denton ISD-calculating osmolarity of iv solution

Concentration of Solutions and Molarity
The concentration of a solution is a measure of
the amount of solute that is dissolved in a given
quantity of solvent.
- A dilute solution is one that contains a small
amount of solute.
- A concentrated solution contains a large
amount of solute.
What we need is a way of quantifying the
concentration of a solution!
Molarity (M) is the number of moles of solute
dissolved in one liter of solution.
? To calculate the molarity of a solution, divide the moles
of solute by the volume of the solution. Remember that
volume is ALWAYS in LITERS!
Molarity Example
If 5 liters of water is added to two moles of
glucose to make a solution, the
concentration (molarity) is said to be 0.4 M
2 mol of glucose
5 liters of soln. = 0.4 M
*Remember that solution is always in liters!

How do you calculate osmolarity of a solution? Prepare 6 beakers carrying 40 ml of sucrose solution at different concentrations. Cut out potato cores, each having the same dimensions. Now weigh each potato core on a weighing balance and note down the mass in a table next to the corresponding concentration of sucrose. More items...

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