In the acetylene torch, acetylene gas (C2H2) burns in oxygen to produce carbon dioxide and water.
2C2H2(g) + 5O2(g) − 4CO2(g) + 2H2O(g)
a. How many moles of O2 are needed to react with 2.00 mol of C2H2?
b. How many moles of CO2 are produced when 3.5 mol of C2H2 reacts?
c. How many moles of C2H2 are required to produce 0.50 mol of H2O?
d. How many moles of CO2 are produced from 0.100 mol of O2?
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