In 0.1 m aqueous solution of urea, the mole fraction of urea is 1 565.5 1 655.55 1 556.55 555.5 565.5

Among 1% solutions of urea. Glucose and sucrose

What is the mole fraction of urea in a 4.45 m aqueous solution?

Elevation in boiling point of an aqueous solution of urea is 0.52 ( k_(b) "for water"=0.52K"molality"^(-1)) . The mole fraction of urea in this solution is :

An aqueous solution of 0.01 m KCl cause the same elevation in boiling point as an aqueous solution of urea. The concentration of urea solution is :

Find the mole fraction of solute in its 5 molal aqueous solution.

Calculate osmotic pressure of 0.1M urea aqueous solution at 300K .

Find the sum of n terms of the series : 5+55+555+…

Depression in f.p. of an aqueous urea solutio is 1.86^(@) .(K_(f)=1.86^(@) mol^(-1) kg) Hence, mole - fraction of urea in this soluiton is :

Calculate the hydrolysis constant, degree of hydrolysis and pH of a 0.1 M aqueous solution of ammonium cyanide at room temperature. (K_a = 9.55 xx 10^(-10) K_b= 1.8 xx 10^(-5) and K_w 1.0 xx 10^(-14))

Assuming very dilute aqueous solution of urea, calculate the vapour pressure of solution ( in mm of Hg ) of 0.1 moles of urea in 180 grams of water at 25^(@)C in ( The vapour pressure of water at 25^(@)C is 24 mm Hg )