Bio Quiz 3

Question 1

If a solution has a pH of 10, then which statement is true about this solution?

Answer 1

The solution is basic and has a higher concentration of hydroxide ions than hydrogen ions

Question 2

Which statement best describes a base?

Answer 2

Substance that accepts hydrogen ions and raises the pH

Question 3

Which statement best describes an acid?

Answer 3

Substance that donates hydrogen ions and lowers the pH

Question 4

If the hydrogen ion [H+] concentration of a solution is 1 x 10^-2 M. Then what is the pH of this solution?

Answer 4

12

Question 5

If the [H+] = 1 x 10^-4 M, then the [OH-] = _______ and the pH = ______

Answer 5

1 x 10^-10M

4

Question 6

You create a solution of baking soda and water. After measuring the pH of the solution, you find the solution has a pH of 8. What is the concentration of Hydroxide [OH-] ions in this solution of baking soda and water?

Answer 6

[OH-] = 1 x 10^-6 M

Question 7

How many electrons are in Carbon’ valence shell?

Answer 7

4

Question 8

What are compounds that have same numbers of atoms (of the same elements) but different structures and arrangements of those atoms?

Answer 8

Isomers

Question 9

Aldehydes and Ketones involve which functional group?

Answer 9

Carbonyl Group

Question 10

Which statement correctly describes organic compounds?

Answer 10

Organic compounds must be made up of carbon and hydrogen and may have other elements.

Question 11

Which of the following statements about amino groups is true?

Answer 11

They can act as bases

Question 12

Which statement is true about solutions with neutral pH?

Answer 12

They can have an equal number of hydrogen ions and hydroxide ions

Question 13

What does pH measure?

Answer 13

Concentration of hydrogen ions