Which of the Following Affects the Osmolarity of a Solution

Question

Which of the following affects the osmolarity of a solution?
A) water concentration
B) salt concentration
C) glucose concentration
D) all of the above

Accepted Answer

Osmolarity refers to the concentration of solutes in a solution, so any solute concentration (such as salt or glucose) will affect the osmolarity. Water concentration is also important because it determines the volume of the solution, which can affect the concentration of solutes. Therefore, all three choices (water, salt, and glucose concentration) affect the osmolarity of a solution.