Methods of Expressing Concentration of Solutions

IMPORTANT

Methods of Expressing Concentration of Solutions: Overview

This Topic covers sub-topics such as Molarity, Normality, Molality, Parts Per Million, Percent Mass by Volume, Mole Percentage, Effect of Temperature on Molarity, Percent Strength and, Relationship between Concentration Terms

Important Questions on Methods of Expressing Concentration of Solutions

MEDIUM
IMPORTANT

A 5 molar solution of   H 2 S O 4 is diluted from 1 litre to a volume of 10 litres, the normality of the resulting solution will be :

EASY
IMPORTANT

Liquid benzene  (C6H6) burns in oxygen according to the equation

2C6H6(l)+15O2(g)12CO2(g)+6H2O(g)

How many litres of  O2 at STP are needed to complete the combustion of 39 g of liquid benzene?  (MolecularweightofO2=32,  C6H6=78)

MEDIUM
IMPORTANT

Calculate mole fraction of KI if the density of 20% (mass/mass) aqueous KI is 1.202 g mL-1.

MEDIUM
IMPORTANT

Calculate molarity of KI if the density of 20% (mass/mass) aqueous KI is 1.202 g mL-1.

MEDIUM
IMPORTANT

Calculate molality of KI if the density of 20% (mass/mass) aqueous KI is 1.202 g mL-1.

HARD
IMPORTANT

Calculate the molality and mole fraction of the solute in aqueous solution containing 3.0 g of urea (molar mass= 60 g mol-1) per 250 g of water?

MEDIUM
IMPORTANT

The weight of H2C2O4.2H2O required to prepare 500ml of 0.2 N solution is?

MEDIUM
IMPORTANT

Calculate the molality of 2 molar solution of urea having density 1.1 g/ml?

MEDIUM
IMPORTANT

Calculate the mass percent of a solution obtained by mixing 100 g of 10% urea solution with 150 g of 15% urea solution.

MEDIUM
IMPORTANT

What is the molarity of 1N H2SO4 solution

MEDIUM
IMPORTANT

4.9 gm of H2SO4 is present in 500 cm3 of the solution has molarity

MEDIUM
IMPORTANT

300 ml of 4.6%(by volume) of ethyl alcohol solution  is present in a container. If 100 ml of this solution is taken and diluted with water such that final volume become 2 litre. The molarity of diluted solution is (Density of pure ethyl alchohol is 2 g/ml

MEDIUM
IMPORTANT

10 g of glucose are dissolved in 150 g of water. The mass % of glucose is

MEDIUM
IMPORTANT

1 g mole of oxalic acid is dissolved in 2 litre of solution. The concentration of solution is

MEDIUM
IMPORTANT

0.01 mole of a non-electrolyte is dissolved in 10 g of water. The molality of the solution is

HARD
IMPORTANT

In the given reaction, FeC2O4+KMnO4H+Fe+3+CO2+Mn+2

If the equivalents of Fe+3 are 'a', then the equivalents of FeC2O4 will be

MEDIUM
IMPORTANT

One mole of H2SO4 is dissolved in 1000 mL solution. Find Normality ?

MEDIUM
IMPORTANT

25ml of aqueous solution of Hydrochloric acid containing 7.3 gms of the acid per litre neutralised 30 ml of aqueous solution of caustic soda. What is the normality of the alkali solution?

MEDIUM
IMPORTANT

Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R.

Assertion A: 3.1500 g of hydrated oxalic acid dissolved in water to make 250.0 mL solution will result in 0.1 M oxalic acid solution.

Reason R: Molar mass of hydrated oxalic acid is 126 g mol1 .

In the light of the above statements, choose the correct answer from the options given below: 

 

HARD
IMPORTANT

9 gms of oxalic acid in 1 lt solution, Find the molarity.