At 300 K, 36 g of glucose present in a litre of its solution has an osmotic pressure of 4.98 bar. Concentration at which osmotic pressure of the solution becomes 1.52 bar at the same temperature, would be -
1. 0.06 M
2. 0.12 M
3. 0.08 M
4. 0.36 M
The amount of CaCl2 (i = 2.47) dissolved in 2.5 litre of water such that its osmotic pressure is 0.75 atm at 27 °C is-
1. 1.02 g
2. 4.35 g
3. 2.87 g
4. 3.42 g