Water Flashcards
1
Q
Bond Strength Order
A
1) Covalent
2) dipole-dipole
3) dipole-induced
4) van der waals/ H bonds
2
Q
H2O
A
104 degree tetrahedral
O-H bond 1 Angstrom
O-O distance in H bond (2.74 A) less than sum of parts
Ice is less dense than water due to framework
3
Q
Hydrogen Bond Donar
A
OH/NH is weakly acidic
4
Q
Hydrogen Bond Acceptor
A
O/H is weakly basic
5
Q
Hydration Shells
A
Na+/Cl- each surrounded by cooresponding position of water. Water is dynamic.
6
Q
Water Chemistry
A
1 L=55.5 Moles
Kw= 1x10^-14
7
Q
pH
A
pH=-log(H+)
pH= pKa+log(acid/base)
8
Q
pKa
A
pKa=-logKa
9
Q
Haemagglutinin
A
Endosomes have pH of 6. H enter and undergoes conformational change
