The Keq for the reaction of water with water is called Kw H₂O + H₂O → H3O+1 + OH-1 [H3O+¹][OH-¹] Kw [H3O+¹][OH-¹] = (1 x 10-7)² = 1 x 10-14 [H₂O]² The inverse logarithm, or -log, of [H3O+¹][OH-¹] = 10-14 is pH + pOH = 14 1. What happens to the [H3O+¹] when acid is added to neutral water? the [H3O+¹] goes 2. What happens to the pH when acid is added to neutral water? an example of an increased [H3O+¹] is [H3O+¹] = 1 x 10-6. Thus pH = -log[106] = 6 thus, adding acid makes the pH go 3. What happens to the [OH-¹] when acid is added to neutral water ? in the equation [H3O+¹][OH-¹] = 10-14, when [H3O+¹] increases, the [OH-¹] goes

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The Keq for the reaction of water with water is called Kw
H₂O + H₂O → H30+1 + OH-1
[H3O+¹][OH-¹]
Kw
[H₂O]²
The inverse logarithm, or -log, of [H3O+¹][OH-¹] = 10-14 is pH + pOH = 14
1. What happens to the [H3O+¹] when acid is added to neutral water?
the [H3O+¹] goes
[H3O+¹][OH-¹] = (1 x 10-7)² = 1 x 10-14
2. What happens to the pH when acid is added to neutral water?
an example of an increased [H3O+¹] is [H3O+¹] = 1 x 106. Thus pH = -log[106] = 6
thus, adding acid makes the pH go
3. What happens to the [OH-¹] when acid is added to neutral water?
in the equation [H3O+¹][OH^¹] = 10-¹4, when [H3O+¹] increases, the [OH-¹] goes
4. What happens to the pOH when acid is added to neutral water?
when [OH-¹] decreases, the pOH goes
this can also be seen using pH + pOH = 14
5. What happens to the Kw when acid is added to neutral water ?
because it's a constant.
a. down
b. up
c. no change
since the pOH = -log[OH-¹]
Transcribed Image Text:The Keq for the reaction of water with water is called Kw H₂O + H₂O → H30+1 + OH-1 [H3O+¹][OH-¹] Kw [H₂O]² The inverse logarithm, or -log, of [H3O+¹][OH-¹] = 10-14 is pH + pOH = 14 1. What happens to the [H3O+¹] when acid is added to neutral water? the [H3O+¹] goes [H3O+¹][OH-¹] = (1 x 10-7)² = 1 x 10-14 2. What happens to the pH when acid is added to neutral water? an example of an increased [H3O+¹] is [H3O+¹] = 1 x 106. Thus pH = -log[106] = 6 thus, adding acid makes the pH go 3. What happens to the [OH-¹] when acid is added to neutral water? in the equation [H3O+¹][OH^¹] = 10-¹4, when [H3O+¹] increases, the [OH-¹] goes 4. What happens to the pOH when acid is added to neutral water? when [OH-¹] decreases, the pOH goes this can also be seen using pH + pOH = 14 5. What happens to the Kw when acid is added to neutral water ? because it's a constant. a. down b. up c. no change since the pOH = -log[OH-¹]
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