How many moles of C2H2 are needed to react completely with 84.0 mol O2?

2 answers:

8 0

How many moles of C2H2 are needed to react completely with 84.0 mol O2? 

33.6 mol C2H2

Mama L [17]3 years ago

6 0

The reaction between C2H2 and O2 is as follows:
2C2H2 + 5O2 = 4CO2 + 2H2O

After balancing the equation, the reaction ratio between C2H2 and O2 is 2:5.

The moles of O2 in this reaction is 84.0 mol. According to the above ratio, the moles of C2H2 needed to react completely with the O2 is 84.0mole *2/5 = 33.6 mole.

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