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If 1.3 L of C3H8 combusts according to the equation below, how much CO2 will be produced?
C3H8(g) + 5O2(g) --> 3CO2(g) +4H2O(g)

Respuesta :

0.162 moles of CO₂ are produced by this reaction.

Chemical reaction:

C₃H₈(g) + 5O₂(g)  →  3CO₂(g) +4H₂O(g)

As we have the volume of propane, we need to know the mass that has reacted, so we apply density's concept.

Calculation for Density:

[tex]\text{ Density} = \frac{\text{ Mass}}{\text{Volume}}\\\\\text{ Mass}= \text{ Density} * \text{Volume}\\\\\text{ Mass}= 0.00183 g/mL * 1300 mL \\\\\text{ Mass}= 2.379 g[/tex]

Determination for moles:

[tex]\text{Number of moles} =\frac{\text{Given mass}}{\text{Molar mass}}\\\\ \text{Number of moles} =\frac{2.379 g}{44 g }\\\\ \text{Number of moles}=0.054 moles[/tex]

Ratio is 1: 3, 1 mol of propane can produce 3 moles of carbon dioxide.

Then, 0.054 moles may produce (0.054 .3)/1 = 0.162 moles.

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