Advertisements
Advertisements
Question
A 5% solution of \[\ce{Na2SO4.10H2O}\] (MW = 3 22) is isotonic with 2% solution of non- electrolytic, non volatile substance X. Find out the molecular weight of X.
Advertisements
Solution
π1 = π2
iC1RT = C2RT
`(3 xx 5)/322 = 2/"M"`
M = `(2 xx 322)/(3 xx 5)`
M = 42.9 g
APPEARS IN
RELATED QUESTIONS
Calculate the mole fraction of benzene in solution containing 30% by mass in carbon tetrachloride.
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.
4.0 g of NaOH is dissolved in 100 ml solution. The normality of the solution is ____________.
10 g of NaCl is dissolved in 106 g of the solution. Its concentration is ____________.
Mole fraction of the solute in a 1.00 molal aqueous solution is ____________.
What is the normality of a 1 M solution of H3PO4?
The volume of 4 N HCl and 10 N HCl required to make 1 litre of 6 N HCl are ____________.
Define the following modes of expressing the concentration of a solution. Which of these modes are independent of temperature and why?
m (Molality)
3.36 M sulphuric acid solution is 29% H2SO4 calculate the density of the solution.
Calculate the mass percent of benzene (CoH6) and carbon tetrachloride (ccl4) if 22 g of benzene is dissolved in 122 g of carbon tetrachloride.
