Complete combustion of of ethane gives molecules of water. The value of is (Round off to Nearest Integer). [; C=12.0, O=16.0, H=1.0]

Question

Complete combustion of  of ethane gives  molecules of water. The value of  is  (Round off to Nearest Integer). [; C=12.0, O=16.0, H=1.0]

Canvas Classes · Accepted Answer

Strategy:
 Combust ethane () to relate the moles of fuel to moles of water.  mole of ethane provides  moles of . Convert to absolute molecules using Avogadro's number.

Step 1: Calculate moles of Ethane
Molar mass .

Step 2: Calculate molecules of water
Moles .

The value of  is approximately 18.

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