Concept explainers
Interpretation:
The molar mass of the
Concept introduction
Osmosis is the process by which net movement of solvent into an expense of higher solute concentration via semi permeable membrane.
Osmotic pressure is the pressure that is needed to stop osmosis. Osmotic pressure of the solution is directly proportional to the concentration of the solution. We can calculate osmotic pressure by using this formula is given by,
Osmotic pressure
Where,
‘i’-Van’t Hoff’s factor.
M – Molarity of the solution (mol/L).
R- Ideal gas constant (0.08206
T-Temperature in Kelvin
Moles: One mole is equivalent to the mass of the substance consists same number of units equal to the atoms present in
From given mass of substance moles could be calculated by using the following formula,
Mass: It is the quantitative measure of a substance. The amount of matter present in substance is expressed as mass. The
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Chemistry: The Molecular Science
- A certain liquid X has a normal freezing point of 7.00°C and a freezing point depression constant =Kf 7.41·°C·kgmol−1. A solution is prepared by dissolving some iron(III) chloride (FeCl3) in 700.g of X. This solution freezes at 3.5°C. Calculate the mass of FeCl3 that was dissolved. Be sure your answer is rounded to the correct number of significiant digits.arrow_forwardA solution containing 27.55 mg of an unknown protein per 25.0 mL solution was found to have an osmotic pressure of 3.22 torr at 25 °C. What is the molar mass of the protein?arrow_forwardThe freezing point of an aqueous solution of barium nitrate is -2.65°C. Determine the apparent molal concentration of barium nitrate.arrow_forward
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- A solution is prepared by dissolving 0.500 g of a polymer in 0.200 L toluene (an organic solvent). The osmotic pressure of the solution was measured to be 0.582 torr at 20. oC. Calculate the molecular mass of the polymer. (The polymer is a nonelectrolyte.)arrow_forwardA protein subunit from an enzyme is part of a research study and needs to be characterized. A total of 0.170 g of this subunit was dissolved in enough water to produce 2.00 mL of solution. At 28 °C the osmotic pressure produced by the solution was 0.138 atm. What is the molar mass of the protein?arrow_forwardSuppose 1 g of lauric acid is added to 5 g of stearic acid. Predict the temperature at which this mixture will begin to melt, and justify your answer.arrow_forward
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