Question

calculate the volume of Mass and number of molecules of CO2 liberated when 104g acetylene (C2H4) Burnt in air atomic masses of of C =12u,o =16u and H=1u​.​

Answer 1

Reaction:

2C

2

H

2

+5O

2

⟶4CO

2

+2H

2

O

2 5

2 volumes of acetylene reacts with 5 volumes of oxygen

So oxygen required is 50×5/2=125cm

3

.

As air contains 20% oxygen only so volume of air required will be 20

125×100 =625cm

3

Answer 2

Answer:

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