Unit 11: Acids, Bases, and Solutions Introduction to Solutions.
SOLUTIONS OF ACIDS & BASES Chapter 14, Section 3.
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Transcript of SOLUTIONS OF ACIDS & BASES Chapter 14, Section 3.
![Page 1: SOLUTIONS OF ACIDS & BASES Chapter 14, Section 3.](https://reader035.fdocuments.in/reader035/viewer/2022062500/5697bff31a28abf838cbc56c/html5/thumbnails/1.jpg)
SOLUTIONS OF ACIDS & BASES
Chapter 14, Section 3
![Page 2: SOLUTIONS OF ACIDS & BASES Chapter 14, Section 3.](https://reader035.fdocuments.in/reader035/viewer/2022062500/5697bff31a28abf838cbc56c/html5/thumbnails/2.jpg)
Strengths of Acids & Bases
Depends on the number of molecules that break apart when they are dissolved in water
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Acids
An acid is dropped into water… If all of the molecules break apart, then it is a _______ acid
If only a few break apart, then it is a ______ acid
strong
weak
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Bases
A base is dropped into water… If all of the molecules break apart, then it is a ______ base
If only a few break apart, then it is a ______ base
strong
weak
![Page 5: SOLUTIONS OF ACIDS & BASES Chapter 14, Section 3.](https://reader035.fdocuments.in/reader035/viewer/2022062500/5697bff31a28abf838cbc56c/html5/thumbnails/5.jpg)
Acids, Bases, Neutralization
Antacid + Stomach Neutralization Reaction
NR – an acid and base react to form water & salt (neutralize)
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The pH scale
Is used to describe how acidic or basic a solution is.
pH of 7 is neutral (not acidic or basic) – water
Basic: pH 8-14 Acidic: pH 1-6
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Tell me whether it is acidic or basic and guess what number: Detergents Milk Lemon Juice Clean Rain Acid Rain
Ammonia Sea water Human stomach Coke Saliva
0 1 2 3 4 5 6
7 8 9 10 11 12 13 14
Dete
rgen
ts
Milk
Coke
Lem
on Ju
ice
Am
mon
ia
Sea W
ate
r
Saliva
Human stomach
Cle
an
rain
Aci
d R
ain
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Indicators
Use a pH indicator scale to determine the pH level
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pH & the environment
Different plants prefer different pH levels
Pine trees – pH 4-6 Lettuce – pH 8-9
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More nature junk
Hydrangea flowers – different colors call for different pH levels
high pHlow pH
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Salts
Are produced when an acid neutralizes a base
Sodium hydroxide - Used to make baking soda
Sodium nitrate - used to preserve food
Calcium sulfate – used to make wallboard (construction)
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http://www.neok12.com/php/watch.php?v=zX607e0205547b0a79040167&t=Acids-and-Bases