<span>Phosphorus trifluoride (formula PF3), is a colorless and odorless gas. is similar to carbon monoxide and this is very toxic according to my research. hope this helps.</span>
It would be atomic masses of the same atoms, and that atoms will be isotopes.
The percent by mass of oxygen in carbon dioxide (
) is 72.71%.
<u>Scientific data:</u>
- Molar mass of oxygen gas = 32 g/mol.
- Molar mass of carbon = 12 g/mol.
To calculate the percent by mass of oxygen in carbon dioxide (
):
First of all, we would calculate the molar mass of carbon dioxide (
);

For the percent by mass of oxygen:

Substituting the parameters into the formula, we have;

Percent mass of oxygen = 72.71%
Read more on percent mass here: brainly.com/question/15182450