The combustion reaction of propane is described by the reaction. c3h8 5o2 → 4h2o 3co2. how many moles of o2 are required to generate 3 moles of co2

C₃H₈   + 5 O₂ → 4 H₂O + 3 CO₂

mole ratio based on balance equation of O₂   : CO₂ i s 5 : 3
C₃H₈   +   5 O₂ →   4 H₂O   +   3 CO₂

∴ if moles of CO₂ = 3 moles

then moles of O₂ = (3 moles ÷ 3) × 5

= 5 moles

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JannetPalos JannetPalos · Answer 2 · 2019-06-10T16:15:28+02:00

Answer:

5 moles of [tex]O_{2}[/tex] are required to generate 3 moles of [tex]CO_{2}[/tex]

Explanation:

According to given balanced equation, 5 molecules of [tex]O_{2}[/tex] reacts with 1 molecules of [tex]C_{3}H_{8}[/tex] to produce 4 molecules of [tex]H_{2}O[/tex] and 3 molecules of [tex]CO_{2}[/tex].

So, 5 molecules of [tex]O_{2}[/tex] generate 3 molecules of [tex]CO_{2}[/tex] or [tex](5\times 6.023\times 10^{23})[/tex] molecules of [tex]O_{2}[/tex] generate [tex](3\times 6.023\times 10^{23})[/tex] molecules of [tex]CO_{2}[/tex]

As 1 mol = [tex]6.023\times 10^{23}[/tex] molecules therefore 5 moles of [tex]O_{2}[/tex] are required to generate 3 moles of [tex]CO_{2}[/tex]