3.1.12 Acids and bases (A-level only Flashcards
1
Q
why is H20 not shown in the Kw expression
A
because the concentration of H20 is almost constant
2
Q
equilibrium of KW
A
the Kw expression has an equilibrium which is endothermic to the right
3
Q
if the temperature is increased, what happens to Kw
A
the Value of KW increases
4
Q
for the pH of pure water what do you do
A
square root the KW value
5
Q
why is a pH probe washed with distilled water
A
