Question

27 g of Al is heated with 49 ml of h2so4 ( specific gr = 2 ) produce h2 gas calculate the volume of h2 gas at ntp and persentage react with h2so4​

Answer 1

Answer:

ANSWER

2Al+3H

2

SO

4

⟶Al

2

(SO

4

)

3

+3H

2

↑

2 moles of Al reacts with 3 moles of H

2

SO

4

.

i.e. 2×27g reacts with 3×98g H

2

SO

4

.

Mass of H

2

SO

4

present =49×2=98g

∴ Mass of Al reacted =

3

2

×27=18g

∴% Al reacted =

27

18

×100=66.66%