In a gas grill, 29 lbs propane c3h8 are
burned with just enough air for complete combustion at a party. how
many lbs of combustion products are formed? round your answer to
the nearest whole number.

Answer : The mass of combustion products formed are 134 lbs.

Explanation :

The balanced chemical reaction will be:

Given :

Mass of = 29 lbs = 13154.2 g

conversion used : 1 lbs = 453.592 g

Molar mass of = 44 g/mole

First we have to calculate the moles of .

Now we have to calculate the moles of and .

From the balanced chemical reaction we conclude that,

As, 1 mole of react to give 3 moles of

So, 298.9 mole of react to give moles of

and,

As, 1 mole of react to give 4 moles of

So, 298.9 mole of react to give moles of

Now we have to calculate the mass of and .

Molar mass of = 44 g/mole

Molar mass of = 18 g/mole

and,

The total mass of products = Mass of + Mass of

The total mass of products = 86.98 + 47.44 = 134.42 ≈ 134 lbs

Therefore, the mass of combustion products formed are 134 lbs.

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