Question

Question:
Calculate the quantity of sodium chloride required to make 400 ml 1in 20 solution
Option 1:
22.0 gm
Option 2:
25.0 gm
Option 3
20.0 gm
Option 4:
23.0 gm​​

Answer 1

Answer:

Option 3: 20g

Explanation:

1 in 20 means 5% solution, and 5% of 400ml (assuming that the volume doesn't increase on adding the salt) is 20g, so the answer is 20g