Unit 3 Target 3: pH Quiz
8 Questions
| Total Attempts: 768
Questions and Answers
- 1.Which solution has the greatest concentration of hydroxide ions (OH-)?
- A.
Urine (pH 6.0)
- B.
Rainwater (pH 5.5)
- C.
Tomato juice (pH 4.0)
- D.
Gastric juice (pH 2.0)
- 2.When the pH in a stomach increases from 2 to 4, how does the hydrogen ion concentration change?
- A.
It increases by a factor of 2.
- B.
It increases by a factor of 100.
- C.
It decreases by a factor of 2.
- D.
It decreases by a factor of 100.
- 3.As part of an experiment, a student adds 10 mL of 5% hydrochloric acid solution to 100 mL of a non-buffered, colorless solution of sugar. What is the most likely result?
- A.
The concentration of hydroxide ions (OH-) will increase.
- B.
The concentration of hydrogen ions (H+) will increase.
- C.
The pH will not change.
- D.
The pH will increase.
- 4.Netural solutions have a pH of
- A.
0
- B.
7
- C.
9
- D.
14
- 5.Which is true?
- A.
PH of less than 7 is basic; pH of more than 7 is acidic
- B.
PH of less than 7 is acidic; pH of more than 7 is basic
- C.
Option 3
- D.
Option 4
- 6.If a solution has 455,000 H+ at at pH of 3, how many H+ would there be at a pH of 5?
- A.
455
- B.
4,550
- C.
45,500,000
- D.
4,550,000
- E.
45,500
- 7.If a solution has 9,700 H+ at a pH of 8, how many H+ would there be at a pH of 5?
- A.
970
- B.
9.70
- C.
97,000
- D.
970,000
- E.
9,700,000
- 8.If a solution has 420,000 OH- at a pH of 8, how many OH- would there be at a pH of 9?
- A.
4,200
- B.
42,000,000
- C.
4,200,000
- D.
42,000
- E.
420
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