Question

Q. what volume of 95% by weight sulphuric acid (specific gravity is 1.85 g oer ml)and what mass of water must be taken to prepare 100 ml 15% by weight solution of sulphuric acid(density is 1.1 g per ml)
Plz answer it's urgent
The first answer gets brainless

Answer 1

Welcome dear,

● Answer -
9.4 ml 95% H2SO4 in 90.6 ml water

● Explaination -
Total mass of solution
= density × volume
= 1.1 × 100
= 110 g

Mass of 15% H2SO4 in solution
= 110 × 15/100
= 16.5 g

Mass of water in solution
= 110 - 16.5
= 93.5 g

Mass of 95% H2SO4 required
= 100 × 16.5 / 95
= 17.37 g

Volume of 95% H2SO4 required
= 17.37 / 1.85
= 9.4 cm^3
= 9.4 ml

Volume of water required
= 100 - 9.4
= 90.6 ml

Therefore, 9.4 ml of 95% H2SO4 should be added in 90.6 ml water.


Hope this helps you...