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BIOL 103 ACIDS AND BASES QUIZ

BIOL 103 ACIDS AND BASES QUIZ

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Acids and Bases Quiz
Question 1
Points: 0 out of 10
You have a solution that has a pH of 5 and need it to be pH 8. What do you do?
Add a base
Add water
Add an acid
Question 2
Points: 10 out of 10
You test soda (pH 2.5) with blue litmus paper. What color would you expect to see?
Red
Green
Blue
Yellow
Question 3
Points: 10 out of 10
Buffers: _____________________________.
make solutions more basic
make solutions more acidic
resist changes in pH
Question 4
Points: 10 out of 10
Which of the following is the strongest base?
stomach acid, pH 1
ammonia, pH 12
black coffee, pH 5
water, pH 7
baking soda, pH 8.5
Question 5
Points: 10 out of 10
pH is a measure of
electrical charge
toxicity
hydrogen ions
chemical reactivity
Question 6
Points: 10 out of 10
Solution A has a lower concentration of H+ than solution B. Solution A is
more neutral
more basic
more acidic
Question 7
Points: 10 out of 10
A substance with a pH of 4 is _______________?
basic
acidic
neutral
Question 8
Points: 10 out of 10
A small amount of acid is added to a buffered solution. What will happen?
The pH will increase rapidly after acid is added.
The pH will change very little, if at all. The buffer will donate extra hydrogen ions to the solution to keep the pH constant.
The pH will change very little, if at all. The buffer will accept the hydrogen ions from the added acid, keeping pH constant.
The pH will decrease rapidly after acid is added.
Question 9
Points: 10 out of 10
The pH of a solution is a measure of what in the solution?
Concentration of electrons
Potential energy
Total concentration of all ions in a solution
Concentration of hydrogen ions
Question 10
Points: 10 out of 10
You have a solution that has a pH of 8 and need it to be pH 5. What do you do?
Add water
Add a base
Add an acid
 


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