During an experiment hydrogen (H2) and oxygen (O2) gases reacted in an

1.	During an experiment hydrogen (H2) and oxygen (O2) gases reacted in an electric are to produce water asfollows: 2H +O2 \(\overset{Electicity}{\longrightarrow}\) 2H2OThe experiment is repeated three times and data tabulated as shown below:Experiment numberMass of H2 reactedMass of O2 reactedMass f H2O produced12g16g18g24g32g36g3--9gDuring 3rd experiment the researcher forgot to list masses of H2 and O2 used. So, if the law of constant proportion is correct then ind mass of O2 used during 3rd experiment. A. 4g B. 8g C. 16g D. 32g
Answer» In experiment (i), the ratio is 2:16, i.e., 1:8 In experiment (ii), the ratio is 4:32, i.e., 1:8 According to the law of constant proportions, the ratio of third experiment should be the same (1:8) Therefore, the mass of O₂ used during 3^rd experiment is 8g.

During an experiment hydrogen (H2) and oxygen (O2) gases reacted in an electric are to produce water asfollows: 2H +O2 \(\overset{Electicity}{\longrightarrow}\) 2H2OThe experiment is repeated three times and data tabulated as shown below:Experiment numberMass of H2 reactedMass of O2 reactedMass f H2O produced12g16g18g24g32g36g3--9gDuring 3rd experiment the researcher forgot to list masses of H2 and O2 used. So, if the law of constant proportion is correct then ind mass of O2 used during 3rd experiment. A. 4g B. 8g C. 16g D. 32g

Answer»

In experiment (i), the ratio is 2:16, i.e., 1:8

In experiment (ii), the ratio is 4:32, i.e., 1:8

According to the law of constant proportions, the ratio of third experiment should be the same (1:8)

Therefore, the mass of O₂ used during 3^rd experiment is 8g.