Question

What weight of solute is present in 60.7 ml of 0.0362( m) Hno3

Answer 1

Molarity is a measure of the concentration of a solute in a solution or of any chemical species, in terms of the amount of a substance in a given volume.

Molar concentration or molarity is most commonly expressed in units of moles of solute per litre of solution. it is represented by lowercase c:

c=

V

n

where,

n= no. of moles of solute.

V= volume of solution in liters.

Calculation:

Let the weight of solute be x g.

Number of moles required be

98.07

x

Molarity c=0.1 M

The volume of solution in litres is V=

1000

200

=0.2 litres

Molarity of solution can be calculated as c=

0.2

98.07

x

=0.1

⟹x=98.07×0.1×0.2

⟹x=1.961 g

Weight of sulphuric acid is 1.96 g.