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riadik2000 [5.3K]
3 years ago
9

Acetylene gas (C2H2) is used in welding torches. When it reacts with oxygen, it produces

Chemistry
1 answer:
Vikki [24]3 years ago
8 0

Mass C₂H₂ needed : 22.165 g

<h3>Further explanation</h3>

Reaction

2C₂H₂+ 5O₂ ⇒ 4CO₂ + 2H₂O

75.0 grams of CO₂ , mol CO₂ (MW=44 g/mol) :

\tt \dfrac{75}{44}=1.705

mol C₂H₂ :

\tt \dfrac{2}{4}\times 1.705=0.8525

mass C₂H₂ (MW=26 g/mol) :

\tt 0.8525\times 26=22.165~g

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