ETHANE

• Construct the molecule ethane ,C2H6. Note that you can make ethane from the the methane model by removing a by hydrogen and replacing the hydrogen with a methyl group - CH3

• Draw the structure of ethane as it would appear in two dimensions

• Draw a sahores representation of ethane. then, draw both a staggered and an eclipsed newman projection of ethane

• rotate the molecule around to determine whether the hydrogens are equivalent with each other. Evaluate the equivalency of the carbon atoms as well

• Use a protractor to measure the H--- C--- H bond angle on the ,odel

• Use a protractor to measure H- C- H bond angle on the model

question

1. Draw the 2D structure of C₂H₆

2. Draw the sawhorse representation of C₂H₆

3. Draw the staggered Newman projection of C₂H₆

_4. Draw the eclipsed Newman projection of C₂H₆

_5. Are the hydrogen atoms in C₂H₆ equivalent? YES or NO

6. Are the carbon atoms in C₂H₆ equivalent? YES or NO

7. What is the HCH bond angle?

8. What is the HCC bond angle?