For each molecule Acetone(propanone) and Stearic Acid:
• Label any C=C bonds as E or Z. If this is not possible, explain briefly.
• Locate any sp3 chirality centres on the molecule. Are these R or S?
• Are any parts of the molecule conformationally mobile? Predict and draw the most stable conformation. Explain your
prediction briefly. You should consider the effects of conjugation, but may ignore intermolecular H-bonding.

plz help ASAP

Additional Details
can you please tell me how the last question works for the two molecule acetone(Propanone) and Stearic Acid? Im so confusedd