Reactions in Solutions
Reactions in Solutions: Overview
The topic describes different ways of expressing the concentration of a solution. It explains the concepts of mass per cent, mole fraction, molarity and molality with solved problems.
Important Questions on Reactions in Solutions
Residue is a substance that dissolves a solute to form a solution.

A substance that dissolves a solute to form a solution is called as:

_____ is a substance that dissolves a solute to form a solution.

Amount of Oxalic acid , in grams required to prepare of oxalic acid solution is _____.

Amount of Oxalic acid , in grams required to prepare of oxalic acid solution is _____.

In a salt water solution, salt is considered the solute

What is a solute?

What is the substance called that dissolves the other substance in a solution?

Amount of Oxalic acid , in grams required to prepare of oxalic acid solution is _____ .(/)

How many moles of solute particles are present in one litre of potassium sulphate? (assume does not dissociate.)

Which of the following solutions have the same concentration?

Calculate the molarity of a solution of ethanol in water, in which the mole fraction of ethanol is .
(Assume the density of water to be one).
(Provide correct answer upto decimal places and no need to mention units.)

A quantity of water is added in of ethanol at a certain temperature to get a solution of density . Which of the following is/are correct regarding the solution formed?

of salt of molecular mass is dissolved in of water. The molarity of the solution is _____.

of a salt of molecular mass is . is dissolved in of water. The molarity of the solution is _____.

100 ppm (w/w) of He (by mass) is present in an Ar sample at , in a rigid 22.4 L vessel. Which of the following units remain unchanged as the temperature is raised to

present in of water. Determine mole fraction of and molality

The weight of in the solution of is . Find molality of per kg of water?

8.50 gram of is present in volume. Its active mass is

A sample of weighing is dissolved in water and the solution is made to in a volumetric flask. What is the molarity of the resulting solution?
