How many moles of C2H2 are needed to react completely with 84 mol O2

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asked Jun 25, 2019 122k views

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Matejs · Answer 1 · 2019-07-01T06:40:03+0000

Balanced chemical equation:

2 C2H2 + 5 O2 = 4 CO2 + 2 H2O

2 moles C2H2 ---------------- 5 moles O2
moles C2H2 ------------------ 84 moles O2

moles C2H2 = 84 * 2 / 5

molesC2H2 = 168 / 5 => 33.6 moles of C2H2

How many moles of C2H2 are needed to react completely with 84 mol O2

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