19.2 Lesson: pH concept
Presentation
•
Chemistry
•
10th Grade
•
Easy
Lan Vu
Used 6+ times
FREE Resource
7 Slides • 10 Questions
1
How does one compares the strengths of acids or bases?
2
pH scale measures the strength of acids according to the concentration of H+ ions.
3
4
5
6
Multiple Choice
Acid
Alkaline
Base
Buffer
7
Multiple Choice
Base
Acid
Buffer
Water
8
Multiple Choice
Milk
Orange Juice
Water
Blood
9
Multiple Choice
acids
bases
10
11
Explanation: The [H+] is orange juice is
0.00020 M. Find the pH of orange juice.
Use the equation pH= -log[H+].
Substitute in [H+] with 0.00020.
Solve pH = -log [0.00020] = 3.70
12
Multiple Choice
0.00020 M. FInd the pH of orange juice.
1
3.7
10.3
13
13
Multiple Choice
If the [H+] of a solution is 6.8 x 10-9 M then pH is
8.17
8.2
9.99
8.62
14
Multiple Choice
What is the pH of a solution that has a [H+] of 2.5 x 10-5?
4.605.02.57
4.6
5.0
2.5
7.0
15
Multiple Choice
What is the [OH-] if the pH is 4.9?
7.94 x 10-10 M
1.0 x 10-4 M
7.94 x 10-14 M
4.9 x 10-10 M
16
Multiple Choice
What is the [OH-] if the [H+] is 1.0 x 10-3 M?
1.0 x 10-3 M
6.02 x 10-23 M
1.0 x 10-14 M
1.0 x 10-11 M
17
Multiple Choice
What is the pOH of a 1 x 10-8 M solution of HNO3?
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7
9
How does one compares the strengths of acids or bases?
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