Question

The teacher instructed three students A, B and C respectively to prepare a 50% (mass
by volume) solution of sodium hydroxide (NaOH). A dissolved 50g of NaOH in 100
ml of water, B dissolved 50g of NaOH in 100g of water while C dissolved 50g
of NaOH in water to make 100 ml of solution.
5. Define concentration of a solution.
A) It indicates how thick the solution is.
B) It indicates the exact amount of solute dissolved in an exact amount of solvent or
solution.
C) It indicates the volume of solution.
D) It indicates the strength of solution.
6. How will you prepare a 10% solution of sugar?
A) Dissolve 90g of sugar in 10g of water.
B) Dissolve 10g of sugar in 10g of
water.
C) Dissolve 100g of sugar in 100g in water.
D) Dissolve 10g of sugar in 90g of
water.​

Answer 1

Answer:

C prepared 50 % solution.

Q no 5:- B

Q no 6 :- D