# -2Sio Si Fa4mg 7g9.12:17 AM Thu Dec 5DoneDoneAAe www-awu.ale s.comO STOICHIOMETRYLimiting reactantsJaqueshaGaseous ethane (CH,CH,) will react with gaseous oxygen (02) to produce gaseous carbon dioxide (CO2) and gaseous water (H,0). Suppose 21. g ofethane is mixed with 157.g of oxygen. Calculate the maximum mass of carbon dioxide that could be produced by the chemical reaction. Be sure your answerhas the correct number of significant digits.x10

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Step 1

Given,

Mass of ethane, (CH3CH3) C2H6 = 21 g

Mass of oxygen, O2 = 157 g

Moles of C2H6 and O2 can be calculated as:

Step 2

The balanced chemical reaction of gaseous ethane with oxygen to produce gaseous carbon dioxide and gaseous water can be written as:

2 C2H6 (g) + 7 O2 (g) → 4 CO2 (g) + 6 H2O (g)

Stoichiometric molar ratio of C2H6 : O2 = 2 : 7 = 1 : 3.5

Actual molar ratio of C2H6 : O2 = 0.7 : 4.90625 = 1 : 7

Therefore, O2 is present in excess and C2H6 is the limiting reagent. Therefore, moles of CO2 produced will depend on C2H6.

From the given reaction, it is evident that :

Step 3

Mass of CO2 can be calcu...

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