Question

For a compound containing carbon and oxygen, if ratio by mass of carbon and oxygen present in it is 3:8. Calculate ratio by number of atoms of elements in a molecule of that compound

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Answer 1

Answer:

Atomic weight of Carbon atom=8

Atomic weight of Oxygen atom=16

Hence the atomic weight of carbon and oxygen atoms are constant

In CO

2

, mass of carbon is 12 whereas that of oxygen is 32. Hence the ratio of their masses are 12:32=3:8

However, this fact is not justified by the constant atomic mass of carbon and oxygen. Hence both the statements are correct but the reason is not a correct explanation for the assertion

Explanation:

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Answer 2

Answer:

Atomic weight of Carbon atom=8

Atomic weight of Oxygen atom=16

Hence the atomic weight of carbon and oxygen atoms are constant

In CO

2

, mass of carbon is 12 whereas that of oxygen is 32. Hence the ratio of their masses are 12:32=3:8

However, this fact is not justified by the constant atomic mass of carbon and oxygen. Hence both the statements are correct but the reason is not a correct explanation for the assertion

Explanation:

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