Water and Buffer Systems

Question 1

define hydrophobic effect

Answer 1

refers to interaction of nonpolar molecules (i,e oils and fats) or components of molecules in an aqueous solution

Question 2

define polar

Answer 2

an asymmetric molecule with either lone pairs of electrons on a central atom or having atoms with different electronegativities bonded - basically an uneven distribution of charge with one side being positive and the other negative

Question 3

define non polar

Answer 3

a molecule with symmetry and no unshared electrons

Question 4

define osmotic pressure

Answer 4

force necessary to resist the movement of water (influenced by concentration)

Question 5

autoionisation definition

Answer 5

where hydrogen ions are spontaneously generated in pure water by the dissociation of a small % of the water molecules