IMED1001 Study Guide - Final Guide: Osmotic Concentration, Sodium Chloride
Document Summary
The concentration of water will be lower in the solution. And water will therefore tend to move across the membrane from the solution of low solute concentration to that with high solute concentration. This diffusion of water down its concentration gradient is indistinguishable from water movement driven. And by convention the water is said to move in response to an osmotic. Across the membrane separating the two compartments. In determining the effective osmotic pressure difference across a membrane. A number of factors have to be taken into account: A) the total concentration of dissolved solutes that is effectively diluting water on each side of the membrane. This is referred to as the osmolarity. (total number of moles of particles /l of solution) (total number of moles of particles/kg of water) The units used are osmoles/l or osmoles/kg. Strictly speaking we should use osmolality rather than osmolarity, since the former more correctly measures the.
