Q. 17 B5.0( 1 Vote )
At 300 K, 36 g of glucose, C6H12O6 present per litre in its solution has an osmotic pressure of 4.98 bar. If the osmotic pressure of another glucose solution is 1.52 bar at the same temperature, calculate the concentration of the other solution.
Weight of Glucose, w = 36g
Osmotic Pressure of first glucose solution, n1 = 4.98 bars
Osmotic Pressure of second glucose solution, n2 = 1.52 bars
Concentration of first glucose solution, C1 = 36 / 180
= 1 / 5
To find: Concentration of the other solution, C2:
n = CRT
n1 = 0.2RT ………… (i)
4.98 = 0.2RT
RT = 24.9
n2 = C2 × RT
1.52 = C2 × 24.9
C2 = 1.52 / 24.9
C2 = 0.061 M
Therefore the concentration of the second solution of glucose is 0.061 M.
Rate this question :
A. When 2.56 g of sulphur was dissolved in 100 g of the freezing point lowered by 0.383 K. Calculate the formula of sulphur
( for Atomic mass of Sulphur ]
B. Blood cells are isotonic with 0.9% sodium chloride solution. What happens if we place blood cells in a solution containing
(i) 1.2% sodium chloride solution?
(ii) 0.4% sodium chloride solution?Chemistry - Board Papers
A. Calculate the freezing point of solution when 1.9 g of was dissolved in 50 g of water, assuming undergoes complete ionization.
B. (i) Out of 1 M glucose and 2 M glucose, which one has a higher boiling point and why?
(ii) What happens when the external pressure applied becomes more than the osmotic pressure of solution?Chemistry - Board Papers
Match the terms given in Column I with expressions given in Column II.
Note : A statement of assertion followed by a statement of reason is given. Choose the correct option out of the options given below each equation.
Assertion : Molarity of a solution in liquid state changes with temperature.
Reason : The volume of a solution changes with change in temperature.
Chemistry - Exemplar
Note: In the following questions a statement of assertion followed by a statement of reason is given. Choose the correct answer out of the following choices.
Assertion: Molarity of a solution in liquid state changes with temperature.
Reason: The volume of a solution changes with change in temperature.
Chemistry - Exemplar