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How many moles of carbon dioxide is produced when 10.4 mol of propane gas is burned in excess oxygen?
a. 0.288 mol
b. 3.46 mol
c. 31.2 mol
d. 52.0 mol
just the letter


Sagot :

The formula of propane is C3H8. The reaction equation is C3H8 + 5O2 = 3CO2 + 4H2O. So the ratio of mol number of propane and CO2 is 1:3. So the CO2 has 10.4*3=31.2 mol. So the answer is c.

The number moles of carbon dioxide 31.2 moles will be produced when 10.4 mol of propane gas is burned in excess oxygen.

What is moles?

A mole would be the amount of a material that includes exactly 6.02214076 × [tex]10^{23}[/tex] of the particular chemical elementary constituents.

It is known that the formula of propane is [tex]C_{3}H_{8}[/tex].

The chemical reaction of propane.

[tex]C_{3}H_{8}[/tex] + [tex]5O_{2}[/tex] → [tex]3CO_{2} +4H_{2}O[/tex]

It can be understand that, the ratio of propone and carbon di-oxide is 1:3.

The moles of propane = 10.4 mol

So, number of moles of [tex]CO_{2}[/tex] = 10.4 mol × 3 =31.2 mol.

Therefore, the number of moles of carbon di-oxide will be 31.2

Hence, the correct answer will be option (C).

To know more about moles.

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