Question

The teacher instructed 4 students A, B, C and D respectively to prepare a 50%
(mass by volume) solution of sodium hydroxide (NaOH). The student who prepared the correct
concentration of NaOH solution is
a) Student A- Dissolved 50g of NaOH in 100ml of water,
b) Student B- dissolved 50ml of NaOH in 100g of water
c) Student C dissolved 50g of NaOH in water to make 100ml of solution.
d) Student D dissolved 50 ml of NaOH in 100 mL of water

Answer 1

Explanation:

The teacher instructed 4 students A, B, C and D respectively to prepare a 50%

(mass by volume) solution of sodium hydroxide (NaOH). The student who prepared the correct

concentration of NaOH solution is

a) Student A- Dissolved 50g of NaOH in 100ml of water,

b) Student B- dissolved 50ml of NaOH in 100g of water

c) Student C dissolved 50g of NaOH in water to make 100ml of solution.

d) Student D dissolved 50 ml of NaOH in 100 m

Answer 2

Answer:

C) Student c dissolved 50 g of Noah in water to make 100 ml of solution.