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Chapter 19- Acids and Bases
Acids/Bases descriptions & formulas with pH
19
Chemistry
10th Grade
06/02/2010

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Cards

Term
Acids produce what type of ions?
Definition
H+
Term

Acids taste ___

Acids turn ____ litmus paper ____.

Definition

1) sour

2) blue, red

Term
pH of an acid is ____ than 7.
Definition
Less
Term
What are two properties of strong acids?
Definition
Good conductors and strong electrolytes
Term
Give an example of at least one strong acid.
Definition

Any of the following:

 

1) HCl

2) HNO3

3) H2SO4

Term

Most acids are (strong/weak) in nature. (choose one)

 

 

Definition
Weak
Term
What are two properties of weak acids? (Hint: Opposite of strong acids)
Definition
1) weak conductors and weak electrolytes
Term
Give an example of a weak acid.
Definition

Any of the following:

 

CH3COOH (Acetic Acid)

H2CO3 (Carbonic Acid)

H3PO4 (Phosphoric Acid)

Term
Bases produce or cause an increase of what kind of ion?
Definition
OH-
Term

How do bases taste?

What color do bases turn red litmus paper?

Definition

1) bases taste bitter.

2) bases turn red litmus paper blue.

 

Term
Bases have a pH ____ than 7.
Definition
greater
Term
What are two characteristics of strong bases? Weak bases?
Definition

1) good conductors and strong electrolytes

2) opposite of #1

Term

NaOH, NH3, and Mg(OH)2

 

Classify each of these bases as strong or weak.

Definition

1)strong

2)weak

3)strong

 

 

*notice the strong ones have OH in the formula while the weak one does not.

Term

In an acidic solution, how does the concentration of H+ compare with the concentration of OH-?

 

In a basic solution?

 

In a neutral solution?

Definition

1) H+ is greater

2) H+ less

3) Equal

Term
Acids and Bases undergo ___________ to form Salt and Water.
Definition
Neutralization
Term

Suppose the pH of a substance was 6.

 

How would you find the:

a) pOH?

b) [OH-]?

c)[H+]?

Definition

a) 6 + pOH= 14, so pOH= 8

 

b) take pOH (8).  Plug it into 10-pOH. So, 10-8 M

 

c) 2 WAYS:

1) 1.0 X 10-14/10-8 = 10-6M

2) 10-6 M

Term

Formula:

pH ----> pOH

pH ----> [H+]

 

pOH ---> pH

[H+] ---> pH

Definition

1) 14 - pH

2) 10-pH

 

3) 14 - pOH

4) -Log[H+]

Term

Formulas

 

1) [OH-] ---> pOH

2) [OH-] ---> [H+]

 

3) pOH ---> [OH-]

4) [H+] ---> [OH-]

Definition

1) -Log [OH-]

2) 1.0 X 10-14/[OH-]

 

3) 10-pOH

4) 1.0 X 10-14/[H+]

 

Term

Classify the following as either acidic, basic, or neutral.

 

1) pH of 13

2) [H+] of 10-7

3) [OH-] of 10-7

4) pOH of 13

5) [OH-] of 2

Definition

1) Basic

2) Neutral

3) Neutral

4) Acidic

5) Basic

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