Answer:
The osmolarity of a solution is 0.003
Explanation:
Osmolarity may be defined as the the number of solutes per volume of solution in litres.
The osmolarity of a solution can be calculated as follows:
[tex]Osmolarity=\frac{\text{No. of solute}}{\text{Volume of solution} (l)} [/tex]
Here, No. of moles = 3 millimoles= 0.003 moles and volume = 1 liter.
[tex]Osmolarity= \frac{0.003}{1}[/tex]
=0.003.
Hence, the osmolarity of a solution is 0.003.