Lecture 1B: Water - Universal Solvent and van der Waals

True or false: biochemistry is NOT water based.

Correct the statement is false after a semicolon and space.

False; biochemistry is water based

What can be considered a polar charge?

Partial and full charges

What does water dissolving technically do?

It picks apart molecules into separate parts

Hydrophobic

Nonpolar molecule that can not be dissolved

Hydrophilic

Polar molecule that can be dissolved

What is the most common example of a hydrophobic molecule? What does the molecule contain? Semicolon and space between answers

Hydrocarbons; carbons and hydrogens

Does the universe favor order or chaos?

Chaos

How does water achieve the most randomized state when mixed with oil? Think about salad dressings.

It is the most randomized when the oil molecules are brought together

When the oil floats to the top of a vinaigrette, which water molecules are ordered?

The water molecules directly keeping the oil molecules separated

When the oil floats to the top of a vinaigrette, which water molecules are randomized?

The water molecules not keeping the oil contained

Amphipathic molecules

Contain both polar and nonpolar regions

What is an amphipathic molecule that is a household product?

Soap

van der Waals forces

Noncovalent interactions

What are van der waals forces also called?

Induced dipole interactions