Analysis of a sample of a compound composed of carbon, hydrogen, and oxygen shows that the sample contains 18.80 g of C, 2.367 g

Question

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Analysis of a sample of a compound composed of carbon, hydrogen, and oxygen shows that the sample contains 18.80 g of C, 2.367 g

of H, and 25.04 g of O. The properties of the compound suggest that the molar mass should be 59.04 g/mol. How many carbon atoms are there in one molecule of the compound

Chemistry

1 answer:

Svet_ta [14] · Answer 1 · 2022-11-06T14:58:32+03:00

Answer:

Analysis of a sample of a compound composed of carbon, hydrogen, and oxygen shows that the sample contains 18.80 g of C, 2.367 g of H, and 25.04 g of O.

The properties of the compound suggest that the molar mass should be 59.04 g/mol.

How many carbon atoms are there in one molecule of the compound?

Explanation:

Empirical formula mass is

$(12g/mol*2)+(1.0g/mol*3)+(16.0g/mol*2)\\=59.0g/mol\\$

Empirical formula mass =molecular formula mass

Hence,

empirical formula is same as molecular formula.

That is --- $C_2H_3O_2$ .

So, the molecule has two carbon atoms in one molecule of the compound.