Chemistry Class 12 NCERT Solutions: Chapter 2 Solutions Part 17

Q: 40: Determine the amount of Equation dissolved in Equation litre of water such that its osmotic pressure is Equation .

Answer:

We know that,

Equation

Equation

Equation

Equation

Equation

Equation

Equation

Here,

Equation

Equation

Equation

Therefore, w Equation

Equation

Hence, the required amount of Equation is Equation

Q: 41. Determine the osmotic pressure of a solution prepared by dissolving Equation of Equation in 2 liter of water at Equation , assuming that it is completely dissociated.

Answer:

When Equation is dissolved in water, Equation ions are produced.

Equation

Total number of ions produced Equation

Equation

Given,

Equation

Equation

Equation

Also, we know that:

Equation

Equation

Appling the following relation,

Equation

Equation

Equation

Equation

Explore Solutions for Chemistry