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Quiz Sciences
Quiz Sciences
Acids and Bases
created by
Vicky8110…
on 7 Apr 14, enabled by
Lou
Sciences
Very hard level
(23% of success)
12 questions - 1 010 players
You must base on chemistry.
They are difficult.
1
Which one of these statements about strong acids is true?
All strong acids have H atoms bonded to electronegative oxygen atoms.
Strong acids are 100% ionized in water.
The conjugate base of a strong acids is itself a strong base.
Strong acids are very concentrated acids.
Strong acids produce solutions with a higher pH than weak acids.
2
Determine the pH of a KOH solution made by mixing 0. 251g KOH with enough water to make 1. 00 x 10² mL of solution.
1. 35
2. 35
7. 00
11. 65
12. 65
3
What is the pH of 10. 0 mL of 0. 0020M HCL?
0. 70
2. 70
3. 70
5. 70
10. 0
4
Calculate the pH of a 0. 10M HCN solution that is 0. 0070% ionized.
1. 00
0. 00070
3. 15
5. 15
7. 00
5
What is the pH of a 0. 0055M HA (weak acid) solution that is 8. 2% ionized?
2. 26
3. 35
4. 52
8. 21
10. 65
6
Calculate the pH of a 1. 6M KOH solution.
1. 60
-0. 20
0. 20
14. 20
13. 80
7
Calculate the pH of 6. 71 x 10¯² M NAOH solution.
12. 83
2. 17
11. 82
6. 71
1. 17
8
Calculate the pH of 2. 6 x 10¯² M KOH.
12. 41
15. 59
2. 06
7. 00
1. 59
9
What is the pH of a solution prepared by mixing 10. 0mL of a strong acid solution with pH=2 and 10. 0mL of a strong acid solution with pH=6. 00?
2. 0
2. 3
4. 0
6. 0
8. 0
10
When comparing acid strength of binary acids HX, as X varies within a particular group of the period table, which one of these factors dominates in affecting the acid strength?
Bond strength
Electron withdrawing effects
Percent ionic character of the H-X bond
Solubility
La Chatelier's principle
11
Hard water deposits (calcium carbonate) have built up around your bathroon sink. Which one of these substances would be most effective in dissolving the deposits?
Ammonia
Bleach (sodium hypochlorite)
Lye (sodium hydroxide)
Vinegar (acetic acid)
12
Determine the pH of a KOH solution made by mixing 0. 251g KOH with enough water to make 1. 00 x 10² mL of solution.
1. 35
2. 35
7. 00
11. 65
12. 65
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created
8 yrs ago
by
Vicky811026
Very hard level
23%
Average on
1010 players
(
2
this month )
1.
AjaraNight
8% in 373s
2.
Sauhit
0% in 95s
all results
Generated on 11 Aug 22, 4h22