Calculate the molarity of a solution of ethanol in water in which in which the mole fraction of ethanol is 0.040.

Calculate the molarity of a solution containing 5g of NaOH in 450mL solution.

Calculate the mass % of carbon in ethanol.

Calculate the mass % of carbon in ethanol.

Calculate mole fraction of ethanol and water in a sample of rectified spirit which contains 92% ethanol by mass.

Calculate the molarity of a solution containing 0.5 g of NaOH dissolved in 500 "cm"^(3) of the solution?

Calculate number of moles in 36g of water.

The vapour pressure of ethanol and methanol are 44.5 and 88.7 mm of Hg at 298 K. An ideal solution is formed at the same temperature by mixing 60 g of ethanol and 40 g methanol. Calculate the total vapour pressure of the solution and the mole fraction of methanol in the vapour phase.

A binary solution of ethanol and n-heptane is an example of

Find mole fraction of ethanol and water in a sample of rectified spirit which contain 95 % ethanol by mass.