Classes

Change the way you learn with Maqsad's classes. Local examples, engaging animations, and instant video solutions keep you on your toes and make learning fun like never before!

Class 9Class 10First YearSecond Year
##### Worked Example 2: The pH of a solution is 9.63. Compute its hydrogen ion concentration.

Q13. What is Raoults law. Give its three statements. How this law can help us to understand the ideality of a solution.

1. A solution contains 50 \mathrm{~g} of sugar dissolved in 450 \mathrm{~g} of water. What is concentration of this solution?

now playing

Worked Example 2: The pH of a solution is 9.63. Compute its hydrogen ion concentration.

(c) Calculate the concentration of a solution in terms of molality which is obtained by mixing 250 \mathrm{~g} of 20 \% solution of \mathrm{NaCl} with 200 \mathrm{~g} of 40 \% solution of \mathrm{NaCl} .

Q 23. 3 g of a non-volatile non-electrolyte solute X are dissolved in 50 \mathrm{~g} of ether (molar mass = 74) at 293 \mathrm{~K} . The vapour pressure of ether falls from 442 torr to 426 torr under these conditions. Calculate the molar mass of solute X .(Ans: 122.6 \mathrm{~g} \mathrm{~mol}^{-1} )

9. Tyndall effect is shown by:(a) sugar solution(b) paints(c) jelly(d) chalk solution