Acetlene torches are often used to cut steel plates. These torched are connected

Question

Acetlene torches are often used to cut steel plates. These torched are connected to a bottle of acetylene and a bottle of oxygen. The gases are combined and ignited to create an intensely hot flame--hot enough to cut steel. When acetylene (C2H2) is burned, the acetluene reacts with oxygen according to the following unbalanced equation:

C2H2 + 5O2 ----> CO2 + H2O

If the bottle of acetylene contains 22.0 pounds of 100% acetylene gas and the oxygen bottle has 18 pounds of pure oxygen in it, which bottle will the metal worker empty first? How much gas (in pounds) will be left in the remaining bottle? (2.205lb=1.000kg)

PLEASE SHOW ALL WORK FOR RATING

Explanation / Answer

C2H2 + 5O2 ----> CO2 + H2O

the bottle of acetylene contains 22.0 pounds of 100% acetylene gas

and the oxygen bottle has 18 pounds of pure oxygen in it,

2.205lb=1.000kg

C2H2 + 5O2 ----> CO2 + H2O

so 26gm of C2H2 + 5 * 32 gm of O2 ----------> 44 gm of CO2 + 18gm of H2O

9.97 kg of C2H2 + 8.16 kg of O2 ------------> 2.24kg of CO2 + 0.91 kg of H2O

so O2 is the limitimg reagent so O2 will empty frist

and 2.24 kg of C2H2 will be produced if there is 100% conversion

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