Question

During an experiment the students were asked to prepare a 20% (mass/
mass) solution of sugar in water. Ram dissolved 20 gm of sugar in 100
gm of water while Sohan prepared it by dissolving 20 gm of sugar in
water to make 100 gm of solution
(a)
Are the two solutions of the same concentration.
(b)
Compare the mass % of the two solutions,
Whose solution contain less amount of solute.
(c)
Is Matter Around Us Pure ?​

Answer 1

Answer:

a) No.

Mass % = Mass of solute Mass of solute +

Mass of solvent x100

(b) Solution made by Ramesh

Mass % = 10/100 +10 x 100 = 10 /110 x100 =

9.09%

Solution made by Sarika

Mass % = 10/100 x 100 = 10%

The solution prepared by Sarika has a higher

mass % than that prepared by Ramesh.

c) Ram's solution contain less amount of

solute.