The density of a 2 M aqueous solution of NaOH is 1.28 g/cm3. The molality of the solution is: [Given that molecular mass of NaOH = 40 g mol−1]

Mixture of chloroform and acetone forms a solution with negative deviation from Raoult's law due to:

Identify the correct statements: A. The molality of 2.5 g of ethanoic acid (Molar mass: 60 g mol-1) in 75 g of benzene solution is 0.556 m. B. The molarity of a solution containing 5 g of NaOH (molar mass: 40 g mol-1) in 450 mL of solution is 0.278 M at 298 K. C. Aquatic species are more comfortable in cold water. D. The solubility of gas increases with decrease in pressure. E. For a binary mixture of A and B, the number of moles of A and B are nA and nB respectively. The mole fraction of B will be χB = nAnA + nB Choose the correct answer from the options given below: