The combustion of gasoline produces carbon dioxide and water. assume gasoline to be pure octane (c8h18) and calculate the mass (in kg) of carbon dioxide that is added to the atmosphere per 1.3 kg of octane burned. (hint: begin by writing a balanced equation for the combustion reaction.)

The mass of carbon dioxide that is added to the atmosphere is 1.50526 kg.

Explanation:

Mass of octane = 1.3 kg = 1300 g

Moles of octane =

According to reaction 1 mole of octane gives 3 moles of carbon dioxide.

Then 11.4035 moles of octane will producer:

of carbon dioxide

Mass of 34.2105 moles of carbon dioxide:

The mass of carbon dioxide that is added to the atmosphere is 1.50526 kg.

answer:

the answer is 6 valence electrons.

explanation:

valence is the # of electrons on the outer most shell of an atom.

oxygen has 6.

although, the valency of oxygen is 2, because it only needs to make 2 covalent bonds, or gain 2 electrons, to achieve the stable octet configuration of a noble gas.

that's it!

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~ trueboss72

a 20-cm-long, cylindrical graphite (pure carbon) rod is inserted into an oxidizing atmosphere at 1145 k and 1.013 x 105 pa pressure. the oxidizing process is limited by the diffu- sion of oxygen counterflow to the carbon monoxide that is formed on the cylindrical surface.