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8 August, 22:55

If the acetylene tank contains 37.0 mil of C2H2 and the oxygen tank contains 81.0 mol of O2, what is the limiting reactant for this reaction

2C2H2 (l) + 502 (g) 4CO2 (g) + 2H2O (g)

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  1. 9 August, 02:05
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    2C₂H₂ (l) + 50₂ (g) = 4CO₂ (g) + 2H₂O (g)

    2 mol 5 mol

    2 mol of C₂H₂ reacts with 5 mol of O₂

    37 mol of C₂H₂ will require 5/2 x 37 mol of O₂

    = 92.5 mol of O₂

    But oxygen available is only 81 mol so formation of product will be controlled by oxygen available. Hence oxygen is the limiting factor.
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