Chapter 3 - The Chemistry of Water (Done) Flashcards
1
Q
how much does water take up in our body?
A
70-80%
2
Q
4 emergent properties of water
A
1) Cohesion and adhesion
2) High specific heat (high heat of vaporization)
- evaporative cooling
3) High density as liquid
4) Universal solvent
3
Q
Molarity
A
moles of solute / L solution
4
Q
What is the osmolarity maintained in blood?
A
300 mOsm/L
5
Q
Acid
A
H+ (proton) donor and OH- acceptor
6
Q
Base
A
H+ (proton) acceptor and OH- donor
7
Q
pH
A
= -log [H+]
8
Q
Le Chatelier’s Principle
A
- observation about chemical equilibria of reactions
- It states that changes in the temperature, pressure, volume, or concentration of a system will result in predictable and opposing changes in the system in order to achieve a new equilibrium state
- used to predict the position of equilibrium and effect of a change in conditions
9
Q
Major buffer in human body
A
bicarbonate buffer system
H₂CO₃ <=> HCO₃−
10
Q
Minor buffer in human body
A
Amino acid
Albumin
11
Q
Kw (ionization constant)
A
= [H+] [OH-] = 10^(-14)
