pH and neutralisation Flashcards
(7 cards)
1
Q
equation for pH
A
pH = -log[H+]
2
Q
What happens in aqueous solution to acids
A
acids dissociate to produce a hydrogen ion and a cation (A-)
results, in more H+ in the aqueous solution
3
Q
what happens to bases when placed in an aqueous solution
A
base dissociates to produce on anion (X+) and a hydroxide ion
hydroxide ions soak up free H+ which results in fewer protus in Solution
4
Q
A
5
Q
What does strong and weak mean?
A
how completely they dissociate their ions in the water
6
Q
What does neutralisation produce
A
a salt and water
7
Q
what is the equivalence point
A
“the point at which the amount of alkali added is just enough to neutralise the acid, according to the molar ratio as defined by the chemical equation”
just enough free OH- to neutralise the free H+
