Flashcards in Exam 1 Lecture 4 Deck (16)
True or False? Water has a HIGH specific heat and a LOW heat of vaporization?
False. High, high
True or false? Solid water is less dense than liquid water.
Water is a __________ solvent.
What is Hydrophobic?
What is Hydrophilic?
Water causes __________ molecules it aggregate or assume specific shapes.
The concentration (pH) of Hydrogen ions is __________ mol/L
__________ is the negative logarithm of hydrogen ion concentration of solution.
If the [H^+] (Hydrogen ion concentration) is 10^-9 mol/L, what is the pH?
What is the pH of stomach acid? (Hint: very acidic!)
If the pH is 2, what is the [H^+]?
An __________ is a substance that dissociates in water to increase the [H^+] (lowers the pH).
What is a Base?
A substance that has a lower [H^+] (higher pH).
_________ are substances that reduce changes in pH.
Buffers __________ H^+ when a base is added and __________ H^+ when acid is added.