W (C) = 0,82
w (H) = 0,18
d (co2) = 1

Предыдущий
вопрос Следующий
вопрос

To find the molecular weight of CO2 (carbon dioxide), we need to add the atomic weights of carbon (C) and two oxygen (O) atoms.

The atomic weight of carbon (C) is approximately 12.01 g/mol, and the atomic weight of oxygen (O) is approximately 16.00 g/mol.

Therefore, the molecular weight of CO2 is:
12.01 (C) + 2(16.00) (O) = 12.01 + 32.00 = 44.01 g/mol

Now we can calculate the weight percentage of carbon (C) and hydrogen (H) in CO2:

Weight percentage of carbon (C) = (12.01 / 44.01) 100 = 27.29%
Weight percentage of oxygen (O) = (32.00 / 44.01) 100 = 72.71%

Given that the weight percentage of carbon (C) is 82% and the weight percentage of hydrogen (H) is 18%, we can conclude that the compound is not CO2, as it only contains carbon and oxygen.