Advertisements
Advertisements
Question
Isotonic solutions must have the same:
(i) solute
(ii) density
(iii) elevation in boiling point
(iv) depression in freezing point
Advertisements
Solution
(ii) density
(iii) elevation in boiling point
Explanation:
`pi` = CRT ot `pi = n_2/V RT`
Isotonic solutions must have same osmotic pressure at a given temperature hence must have same volume and number of moles i.e., same molar concentration. Thus, the isotonic solutions have same elevation in boiling point, and depression in freezing point.
APPEARS IN
RELATED QUESTIONS
Which of the following is not a colligative property?
At 300 K, 36 g of glucose present in a litre of its solution has an osmotic pressure of 4.98 bar. If the osmotic pressure of the solution is 1.52 bars at the same temperature, what would be its concentration?
Calculate the mass of NaCl (molar mass = 58.5 g mol−1) to be dissolved in 37.2 g of water to lower the freezing point by 2°C, assuming that NaCl undergoes complete dissociation. (Kf for water = 1.86 K kg mol−1)
Define the following term:
Hypotonic solution
Choose the most correct option.
In calculating osmotic pressure the concentration of solute is expressed in _______.
Choose the most correct option.
A living cell contains a solution which is isotonic with 0.3 M sugar solution. What osmotic pressure develops when the cell is placed in 0.1 M KCl solution at body temperature?
Answer the following.
Explain reverse osmosis.
Which of the following statements is applicable for 0.1 M urea solution and 0.1 M sucrose solution?
What are hypertonic solutions?
Explain the osmotic pressure of a solution with the help of a thistle tube.
Which of the following is a colligative property?
Two solutions have different osmotic pressures. The solution of higher osmotic pressure is called ____________.
Osmotic pressure of a solution containing 2 g dissolved protein per 300 cm3 of solution is 20 mm of Hg at 27°C. The molecular mass of protein is ______.
Derive an expression to calculate molar mass of non-volatile solute by osmotic pressure measurement.
Assertion (A) : Osmotic pressure is a colligative property.
Reason (R) : Osmotic pressure is proportional to the molality.
Isotonic solutions are the solutions having the same ______.
Arrange the following solutions in the order of increasing osmotic pressure (π) assuming complete ionization.
- 0.5M Li2 SO4
- 0.5M KCl
- 0.5M Al2 (SO4)3
- 0.1 M BaCl2
Write the condition of reverse osmosis.
