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We are asked what intermolecular forces of attraction are present in soap molecules.
The soap molecule has two different ends, one that is hydrophilic (polar head) that binds with water and the other that is hydrophobic (non-polar hydrocarbon tail) that binds with grease and oil.
Soaps consist of compounds such as sodium stearate, CH3(CH2)16COO–Na+, that have both hydrophobic and hydrophilic parts. Consider the hydrocarbon part of sodium stearate to be the "tail" and the charged part to be the "head."
If you have large deposits of grease that you want to wash away with water, you can see that adding sodium stearate will help you produce an emulsion. What intermolecular interactions are responsible for this?
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Based on our data, we think this problem is relevant for Professor Wade's class at OSU.