
Weak Acid and Base Reactions
Authored by Charles Martinez
Chemistry
11th Grade
NGSS covered
Used 1+ times

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1.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
HA, a weak acid, is partially dissociated in water into hydrogen ions and A- . Which of the following equation represents dissociation of HA, a weak acid, in water?
HA(aq) ⇌ H- (aq) + A+ (aq)
H- (aq) + A+ (aq) ⇌ HA(aq)
HA(aq) ⇌ H+ (aq) + A- (aq)
H+ (aq) + A- (aq) ⇌ HA(aq)
2.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
B, a weak base, can react with water in equilibrium into hydroxide ions and BH+ . Which of the following equation represents dissociation of B, a weak base, in water?
B(aq) + H2O(l) ⇌ BH+(aq) + OH- (aq)
B(aq) + H2O(l) ⇌ BH+(aq) + H3O+ (aq)
B(aq) + H3O+(aq) ⇌ BH+(aq) + H2O(l)
B(aq) + OH-(aq) ⇌ BH+(aq) + O2-(aq)
Tags
NGSS.HS-PS1-2
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
For this reaction :
HA(aq) + H2O(l) ⇌ H3O+(aq) + A-(aq)
Which one can act as an acid ?
HA(aq) and A-(aq)
H2O(l) and H3O+(aq)
HA(aq) and H3O+(aq)
H2O(l) and A-(aq)
Tags
NGSS.HS-PS1-1
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
For this reaction :
HA(aq) + H2O(l) ⇌ H3O+(aq) + A-(aq)
Which one is base-conjugate acid pair?
HA(aq) and H3O+(aq)
HA(aq) and A-(aq)
H2O(l) and A-(aq)
H2O(l) and H3O+(aq)
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
For this reaction :
B(aq) + H2O(l) ⇌ BH+(aq) + OH-(aq)
Which one can act as an acid ?
B(aq) and BH+(aq)
B(aq) and BH+(aq)
H2O(l) and BH+(aq)
H2O(l) and OH-(aq)
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
For this reaction :
B(aq) + H2O(l) ⇌ BH+(aq) + OH-(aq)
Which one is base-conjugated acid pair ?
B(aq) and BH+(aq)
B(aq) and OH-(aq)
H2O(l) and BH+(aq)
H2O(l) and OH-(aq)
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
dissociation of weak acid, HA, is represented by following equation :
HA(aq) + H2O(l) ⇌ H3O+(aq) + A-(aq)
The equilibrium constant for this reaction is represented by Ka . Which of the following equation represents expression of equilibrium constant, Ka?
Tags
NGSS.HS-PS1-2
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