What is the mole fraction of solute in 0.5 molal aqueous solution?
0.5 molal solution means 0.5 moles of solute in 1 kg of water. The molar mass of H2O = 18.015 g/mol.
What is the mole fraction of one molal aqueous solution?
It refers to the ratio of the number of moles of solute to the mass of the solvent in kilogram. The SI unit of molality is molal (m). Therefore the correct answer is (d) 0.018.
What is the mole fraction of solute in 2 molal aqueous solution?
i.e. 2 moles of solute in 1000 g of H2O. n1 = 1000/18 = 55.56 mol . x2 = 2/57.56 = 0.0347 .
What do you mean by 1 molal solution?
A solution obtained by dissolving one gram of the solute in 1000 grams of solvent is known as a 1 molal solution. For example, when 60 g of NaOH are dissolved in 1000 g of solvent, the solution contains 1.5 moles of solute in 1 kg of solvent. Therefore, the molality is 1.5. … The SI unit for molality is mol/kg.
What is the mole fraction of 2.5 molal solution?
2.5 m aqueous solution means that 2.5 moles of the solute are dissolved in 1000 g of water. (2.5mol)(2.5mol+55.5mol)=(2.5mol)(58mol)=0.043.
What is the value of mole fraction of the solute in 1.00 molal aqueous solution?
Which one will exhibit largest freezing point depression?
Hence, Al2(SO4)3 will exhibit largest freezing point depression due to the highest value of i.
What is the mole fraction of methyl alcohol?
Therefore, the mole fraction of methyl alcohol in the solution is 0.086.
How do you find the mole fraction of aqueous solution?
A mole fraction, as the name implies, is a comparison of the number of moles in solution. It is found by taking the number of moles of solutes (or solvent) divided by the total number of moles (solutes + solvent). Since this is a fraction, there are no units. The mole fractions of a solution must add up to one.
What would be the normality of Naoh If 4 g of Naoh is dissolved in 100 ml of water?
Now, for normality, we can use the formula, Normality = Molarity × valency factor. We know that sodium hydroxide is monobasic. Therefore, the valency factor of sodium hydroxide is 1. Therefore, normality = 1 × 1 = 1N.
What is the mole fraction of solute in 0.2 molal aqueous solution of urea?
Mole fraction of urea in its aqueous solution is 0.2, them molality of the solution will be. m=0.20.8×100018=25018=13.8 .