The osmotic pressure of CaCl
2
and urea solutions of the same concentration at the same temperature are respectively
0.605 atm and 0.245 atm
, calculate van’t Hoff factor for CaCl
2
.
Which solution has a higher osmotic pressure?
A hypertonic solution
(pronounced “HĪ-per-TAWN-ik”) is a solution with a higher concentration of solute (dissolved substance) than some other, specified solution (and which therefore has a higher osmotic pressure than the other solution). The solution with the lower concentration is then termed hypotonic.
Does NaCl or CaCl2 have a higher osmotic pressure?
NaCl dissociates into two ions, but calcium chloride (CaCl2) dissociates into three: one calcium ion and two chloride ions. Consequently, all else being equal,
a solution of calcium chloride will have a higher osmolarity than
a solution of sodium chloride.
Does NaCl or glucose have higher osmotic pressure?
Statement – I: 1 M
solution of NaCl has a higher osmotic pressure than 1 M solution of glucose at the same temperature
. Statement – II: The number of particles present in 1 M NaCl solution are more than those present in 1 M glucose solution and osmotic pressure depends upon number of particles present in the solution.
How does NaCl affect osmotic pressure?
The pressure at this point is called the osmotic pressure. … Note that a 1 mol/L solution
of NaCl will have twice the osmotic pressure of a
1 mol/L solution of sugar. The NaCl dissociates to give Na+ and Cl− ions, so 1 mol of NaCl has twice as many particles in solution.
Does a hypertonic solution have a higher osmotic pressure?
A hypertonic solution (pronounced “HĪ-per-TAWN-ik”) is a solution with a
higher concentration
of solute (dissolved substance) than some other, specified solution (and which therefore has a higher osmotic pressure than the other solution). The solution with the lower concentration is then termed hypotonic.
What is phenomenon of osmosis?
Osmosis is a
biophysical phenomenon occurring commonly in biologic systems
, in which cells of fluid compartments are separated by semipermeable membranes. … The driving force of the solvent shift is the concentration difference of solutes in the solutions separated by the semipermeable membrane.
What is the osmotic pressure of NaCl?
The dissolved sodium chloride concentration of 35,000 mg/l represents a molar concentration of 0.6 M and such a salt solution is characterized by osmotic pressure of
approximately 2975 kPa
according to equation (1).
What influences osmotic pressure?
Osmotic pressure is influenced by
the concentration of solutes in a solution
. It is directly proportional to the number of solute atoms or molecules and not dependent on the size of the solute molecules.
What factors determine osmotic pressure?
- Solute concentration is the number of solute particles in a unit volume of the solution that directly determines its potential osmotic pressure.
- Osmotic pressure increases with the increase in temperature.
What is osmotic pressure example?
An excellent example of a semipermeable membrane is that
inside the shell of an egg
. After shell removal is accomplished with acetic acid, the membrane around the egg can be used to demonstrate osmosis. Karo syrup is essentially pure sugar, with very little water in it, so its osmotic pressure is very low.
What is osmotic pressure of blood?
Osmotic pressure is determined by
osmotic concentration gradients
, that is, the difference in the solute-to-water concentrations in the blood and tissue fluid. … The pressure created by the concentration of colloidal proteins in the blood is called the blood colloidal osmotic pressure (BCOP).
Which side has more osmotic pressure?
The net flow of solvent through a semipermeable membrane is called osmosis (from the Greek osmós, meaning “push”). The direction of net solvent flow is always from the side with
the lower concentration of solute to the side with the higher concentration
.
What happens when osmotic pressure increases?
The
volume on the side with the solute increases until the number of water molecules on both sides is equal
. Increasing the concentration of solute reduces the space available for water molecules, which reduces their numbers.
What are examples of hypertonic solutions?
Common examples of hypertonic solutions are
D5 in 0.9% normal saline and D5 in lactated ringers
. The administration of hypertonic solutions should be monitored extremely closely, as they can quickly lead to fluid overload.
What does high osmotic pressure mean?
Osmotic pressure happens when two solutions with different concentrations are separated by a membrane. Osmotic pressure causes water to move into the solution with the
highest concentration
. … The higher the concentration (M) or the temperature (T) of a solution, the higher the osmotic pressure.
