Chemistry Post Quiz

Name the term for the number of moles of solute per litre of solution

• molarity

• molality

• litres

• normality

Molarity is the concentration of a

• solute

• solvent

• solution

• solid

What is the term for the number of moles of solute in one kilogram of solvent?

• molarity

• molality

• litres

• normality

The symbol of molarity is

• m

• M

• ml

• ML

The molarity of a solution made by placing 98g of H2SO4 in sufficient water to make 500mL solution is:

• .5

• 1

• 2

• 3

The number of mole present in 2 litre of 0.5 M NaOH is :

• 2

• 1

• 0.1

• 0.2

A sample of KCl is placed in 50 ml of solvent. What should be the mass (in gm) of the sample for the molarity to be 2M ?

• 7.45

• 7.81

• 6.81

• 7

4L of 0.02 Maqueous solution of Nacl was diluted by adding one litre of water. The molarity of the resultant solution is

• 0.004

• 0.008

• 0.012

• 0.016

Find the molarity of the solution when

40g

of sodium hydroxide is added to

100ml

of the water?

• 20M

• 15M

• 10M

• 18M

The solution in the round bottom flask contains 20 g of calcium carbonate in 100 ml. Calculate the molarity of the solution?

• 5M

• 2M

• 20M

• none of the above