What factors affect the rate of osmosis?

The factors affecting the rate of osmosis include:

• Pressure.
• Temperature.
• Surface Area.
• Water Potential.
• Concentration gradient.

Does molecular weight affect osmotic pressure?

The gram molecular weight and volume of a dissolved substance may be calculated from the osmotic pressure of the solution. Osmotic pres- sure is affected only slightly by hydration and so furnishes no precise information as to the size of the hydrated molecule as it exists in a solution.

Does molar mass affect density?

As you know, density is defined as the mass per unit volume of a substance. Since gases all occupy the same volume on a per mole basis, the density of a particular gas is dependent on its molar mass. A gas with a small molar mass will have a lower density than a gas with a large molar mass.

How does molarity affect osmosis?

The concentration of a solute affects the rate of osmosis over time, in a way where, the higher the concentration of a solute, the faster the rate of osmosis. This happens because, in a semi-permeable membrane the water is the only through that can move through. That results in the rate of osmosis being faster.

What factors affect diffusion and osmosis?

The greater the difference in concentration, the quicker the rate of diffusion. The higher the temperature, the more kinetic energy the particles will have, so they will move and mix more quickly. The greater the surface area, the faster the rate of diffusion.

How the molecular mass is determined by osmotic pressure method in polymer?

The molecular masses of polymers are determined by osmotic pressure method and nor by measuring other colligative properties because of the following two reasons: (i) Osmotic pressure is measured at room temperature so the molecule does not dissociate. (ii) Osmotic pressure has appreciable value.

Why is osmotic pressure preferred to find molar mass of macromolecules?

(a) Measurement of osmotic pressure method is preferred for the determination of molar masses of macromolecules such as proteins and polymers because the magnitude of osmotic pressure is large even for very dilute solution and it can be measured at room temperature.

How does molecular weight relate to density?

The weight of the gas divided by its STP volume yields the density of the gas, and the density multiplied by 22.4 mol–1 gives the molecular weight.

What is the relation between molar mass and density of an ideal gas?

The higher the density of the gas the higher the molar mass, and vice versa.

Is molar mass the same as molecular weight?

Moreover, the main difference between both is that molar mass gives the mass of a mole of a particular substance. Whereas molecular weight is the mass of a molecule of a particular substance. While the definition and units are different for molar mass and molecular weight, the value is the same.

What is the molar mass of water?

18.01528 g/mol
Water/Molar mass