20.3 Kₐ constant Flashcards
1
Q
what is a strong acid?
A
acid which completely dissociates into H⁺ ions
2
Q
what is a weak acid?
A
acid which partially dissociates into H⁺ ions
3
Q
what is the units of Kₐ?
A
mol dm⁻³
4
Q
what is the Kₐ?
A
the acid dissociation constant
5
Q
the larger the Kₐ
A
the greater the dissociation
therefore stronger the acid
6
Q
what is the pKₐ?
A
numerical scale for Kₐ
7
Q
equation for pKₐ?
A
-log(Kₐ)
8
Q
equation for Kₐ?
A
10⁻ᵖᴷᵃ
9
Q
would a strong acid have a high or low pKₐ?
A
low
10
Q
would a weak acid have a high or low pKₐ?
A
high
11
Q
would a strong acid have a high or low Kₐ?
A
high
12
Q
would a weak acid have a high or low Kₐ?
A
low
