Advertisements
Advertisements
Question
What is molal depression constant? Does it depend on nature of the solute?
Advertisements
Solution
If m = 1 then ∆Tf = Kf
“Then Kf is equal to the depression in freezing point for 1 molal solution”. No, it does not depends on the nature of the solute.
APPEARS IN
RELATED QUESTIONS
Calculate the mole fraction of benzene in solution containing 30% by mass in carbon tetrachloride.
How many mL of 0.1 M HCl are required to react completely with 1 g mixture of Na2CO3 and NaHCO3 containing equimolar amounts of both?
A sample of drinking water was found to be severely contaminated with chloroform (CHCl3) supposed to be a carcinogen. The level of contamination was 15 ppm (by mass):
- express this in percent by mass.
- determine the molality of chloroform in the water sample.
22.22 gram of urea was dissolved in 300 grams of water. Calculate the number of moles of urea and molality of the urea solution.
(Given: Molar mass of urea = 60 gram mol−1)
An aqueous solution of glucose is 10% in strength. The volume in which 1 g mole of it is dissolved, will be:
10 g of NaCl is dissolved in 106 g of the solution. Its concentration is ____________.
On adding a solute to a solvent having vapour pressure 0.80 atm, vapour pressure reduces to 0.60 atm. Mole fraction of solute is:
A solution made by dissolving 40 g NaOH in 1000 g of water is ____________.
What is the normality of 0.3 m H3Pcl solution?
4.5 g of compound A (MW = 90) was used to make 250 mL of its aqueous solution. The molarity of the solution in M is x × 10−1. The value of x is ______. (Rounded-off to the nearest integer)
