Quiz:3 Some basic concepts of Chemistry (Concentration Terms )

 

Quiz

Question 1:

What will be the mole fraction of H2SO4 in its aqueous solution with molality 0.1 mol kg^-1?

0.002
0.02
0.01
0.0001

Question 2:

What will be the molality of an aq H2SO4 solution if the mole fraction of H2SO4 in this solution is 0.2?

1.389 mol kg-1
1 mol kg-1
13.89 mol kg-1
2 molkg-1

Question 3 :

Which of the following concentration term is not temperature dependent?

Molarity
Mole fraction
Normality
Mass by volume percentage

Question 4:

What will be the normality of an aq H2SO4 solution if 9.8 g of H2SO4 is present in 100 ml of solution?

1
2
0.5
3

Question 5:

What volume of water must be added to reduce the concentration of aq HCl solution from 0.4 M to 0.1 M if initial volume of solution was 300 ml

900 ml
300 ml
600 ml
100 ml

Question 6:

What will be the molarity of an aq HCl solution formed by mixing 400 ml of 0.2 M aq HCl and 600 ml of 0.4 M HCl ?

0.2 M
0.52 M
0.32 M
0.1 M

Question 7:

What will be the molality of 0.1 M aq H2SO4 solution if density of solution is 1.2 Kg/L ?

0.01 m
0.02 m
0.054 m
0.084 m

Question 8:

What will be the mole fraction of sucrose formed by mixing 34.2 g of sucrose in 178.2 g of water ?

0.01
0.1
0.001
0.0001

Question 9:

What will be the concentration of a air pollutant in ppm if 2 mg of it is present in 1 Kg of air ?

4 ppm
2 ppm
6 ppm
8 ppm

Question 10:

What will be the mass by mass percentage of H2SO4 in its aq solution if 5 g of H2SO4 is dissolved with 195 g of water ?

5
1
2.5
1.5

Results:

Correct answers: