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Daily Quiz – AB 1
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1. What does an acid do?a. Give away H+
b. Take H+
c. Give away OH-
d. Take OH-
Daily Quiz – AB 1
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2. A base can do any of the following except: a. Take H+
b. Give away OH-
c. Take OH-
Daily Quiz – AB 1
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3. Bronstead-Lowrey bases usually contain:a. carbonb. nitrogenc. oxygend. silicon
Daily Quiz – AB 1
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4. Adding ammonia (NH3) to water increases [OH-]. Where does the oxygen come from?a. airb. waterc. ammoniad. there is no oxygen
Daily Quiz – AB 1
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1. What does an acid do?a. Give away H+
b. Take H+
c. Give away OH-
d. Take OH-
Daily Quiz – AB 1
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1. What does an acid do?a. Give away H+
b. Take H+
c. Give away OH-
d. Take OH-
Daily Quiz – AB 1
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2. A base can do any of the following except: a. Take H+
b. Give away OH-
c. Take OH-
Daily Quiz – AB 1
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2. A base can do any of the following except: a. Take H+
b. Give away OH-
c. Take OH-
Daily Quiz – AB 1
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3. Bronstead-Lowrey bases usually contain:a. carbonb. nitrogenc. oxygend. silicon
Daily Quiz – AB 1
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3. Bronstead-Lowrey bases usually contain:a. carbonb. nitrogenc. oxygend. silicon
Daily Quiz – AB 1
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4. Adding ammonia (NH3) to water increases [OH-]. Where does the oxygen come from?a. airb. waterc. ammoniad. there is no oxygen
Daily Quiz – AB 1
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4. Adding ammonia (NH3) to water increases [OH-]. Where does the oxygen come from?a. airb. waterc. ammoniad. there is no oxygen
Daily Quiz – AB 1
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What is the acid ionization constant for water?
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H2O
![Page 16: Daily Quiz AB 1. 1.What does an acid do? a.Give away H + b.Take H + c.Give away OH - d.Take OH - Daily Quiz AB 1](https://reader036.vdocuments.site/reader036/viewer/2022062909/5a4d1bac7f8b9ab0599cb217/html5/thumbnails/16.jpg)
H2O
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H2O
H2O ↔ H+ + OH-
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H2O
H2O ↔ H+ + OH-
[OH-] [H+]Ka = ------------------
[H2O]
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H2O
H2O ↔ H+ + OH-
[OH-] [H+]Ka = ------------------
[H2O]
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H2O
H2O ↔ H+ + OH-
[OH-] [H+]Ka = ------------------
[H2O]
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Ionization Constant of Water (Kw)
H2O ↔ H+ + OH-
[OH-] [H+]Kw = ------------------
[H2O]
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Ionization Constant of Water (Kw)
H2O ↔ H+ + OH-
Kw = [OH-] [H+]
= (1.0 x 10-7) (1.0 x 10-7)
= 1.0 x 10-14
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Ionization Constant of Water (Kw)
H2O ↔ H+ + OH-
Kw = [OH-] [H+]
= (1.0 x 10-7) (1.0 x 10-7)
= 1.0 x 10-14
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Ionization Constant of Water (Kw)
H2O ↔ H+ + OH-
Kw = [OH-] [H+]
= 1.0 x 10-14
![Page 25: Daily Quiz AB 1. 1.What does an acid do? a.Give away H + b.Take H + c.Give away OH - d.Take OH - Daily Quiz AB 1](https://reader036.vdocuments.site/reader036/viewer/2022062909/5a4d1bac7f8b9ab0599cb217/html5/thumbnails/25.jpg)
Ionization Constant of Water (Kw)
H2O ↔ H+ + OH-
Kw = [OH-] [H+]
= 1.0 x 10-14
![Page 26: Daily Quiz AB 1. 1.What does an acid do? a.Give away H + b.Take H + c.Give away OH - d.Take OH - Daily Quiz AB 1](https://reader036.vdocuments.site/reader036/viewer/2022062909/5a4d1bac7f8b9ab0599cb217/html5/thumbnails/26.jpg)
Ionization Constant of Water (Kw)
H2O ↔ H+ + OH-
Kw = [OH-] [H+]
= 1.0 x 10-14
This is always true under standard conditions (298oK).
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So what?
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So what?So…
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So what?So…if the H+ ion concentration of an aqueous solution is 1.0 x 10-5 M, what is the OH- concentration?
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So what?So…if the H+ ion concentration of an aqueous solution is 1.0 x 10-5 M, what is the OH- concentration?
Is the solution acidic or basic?
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So what?Kw = [OH-] [H+]
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So what?Kw = [OH-] [H+]
(1.0 x 10-14) = [OH-] (1.0 x 10-5)
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So what?Kw = [OH-] [H+]
(1.0 x 10-14) = [OH-] (1.0 x 10-5)
(1.0 x 10-14) ----------------- = [OH-]
(1.0 x 10-5)
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So what?Kw = [OH-] [H+]
(1.0 x 10-14) = [OH-] (1.0 x 10-5)
(1.0 x 10-14) 1.0 x 10-9 = [OH-]
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Is the solution acidic or basic?
Kw = [OH-] [H+]
(1.0 x 10-14) = [OH-] (1.0 x 10-5)
(1.0 x 10-14) 1.0 x 10-9 = [OH-]
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Is the solution acidic or basic?
We were told: 1.0 x 10-5 = [H+]
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Is the solution acidic or basic?
We were told: 1.0 x 10-5 = [H+]
We calculated: 1.0 x 10-9 = [OH-]
![Page 38: Daily Quiz AB 1. 1.What does an acid do? a.Give away H + b.Take H + c.Give away OH - d.Take OH - Daily Quiz AB 1](https://reader036.vdocuments.site/reader036/viewer/2022062909/5a4d1bac7f8b9ab0599cb217/html5/thumbnails/38.jpg)
Is the solution acidic or basic?
We were told: 1.0 x 10-5 = [H+]
We calculated: 1.0 x 10-9 = [OH-]
[H] > [OH-]
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Is the solution acidic or basic?
We were told: 1.0 x 10-5 = [H+]
We calculated: 1.0 x 10-9 = [OH-]
[H] > [OH-]
It is acidic.
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Homework:Read pages 608-609Do problem 18