Why does oil not dissolve in water?


Why does oil not dissolve in water?


In chemistry, dissolving means when a solute is mixed in with a solvent. The resulting mixture is called a solution. Solutions are important for living things, such as maintaining a proper pH and salt concentration in our blood and interstitial fluid.

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Oil does not dissolve in water because oil is hydrophobic. Hydrophobic literally means "water fearing". Hydrophobic molecules are...

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What is Hydrophobic? - Definition & Interactions


Chapter 3 / Lesson 12

In chemistry, water is considered to be the universal solvent, and materials that are hydrophilic can dissolve in it. Hydrophobic molecules, however, do not dissolve in water. This lesson discusses the characteristics necessary for molecules to be considered hydrophobic.

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