Question

30ml of h2 and 20ml of o230 ml of H2 and 20 ml of O2 react to form water what is the left at the end of the reaction

Answer 1

1ml of H₂ reacts with 0.5ml of O₂ to form 1ml of water.

30 ml of H₂ will react with 15 ml of O₂ to form water. So at the end of the reaction, 30 ml of water and 5 ml of O₂ will be left.

Answer 2

Dear student,
Reaction between H2 and O2 to form water is as follows:
H2 + 12/ O2 →H2O
According to the reaction,
1 ml of H2 reacts with 1/2 ml of O2 form 1 ml of H2O
So, 30 ml of H2 will react with (302) ml = 15 ml of O2 to form 30 ml of water.

Thus, O2 is present in excess. Hence, (20 -15 ) ml = 5 ml of O2 is left behind.

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