Acids and Bases

Question 1

What is H+

Answer 1

A hydrogen atom stripped of it’s electron

Question 2

In pure water, the number of __________ equals the number of __________

Answer 2

Hydrogen ions, Hydroxide ions

Question 3

What is an acid?

Answer 3

Molecule which releases hydrogen ion sot a solution and exceeds the OH- concentration

Question 4

What is a base?

Answer 4

Molecules which add more hydroxide to the concentration than H+

Question 5

How is the pH scale measured?

Answer 5

Ten-fold change in H+ concentration. The smaller the number, the more acidic.

Question 6

pH of 4 is how many times more acidic than a pH of 5?

Answer 6

Ten times

Question 7

pH of 4 is how many times more acidic than a pH of 6?

Answer 7

One hundred times

Question 8

What is a buffer

Answer 8

A weak acid/base pair that resists chang ein pH

Question 9

What is hydrochloridic acid? Strong or weak acid/base? Why?

Answer 9

A strong acid because it releases all of it’s H+ when dissolved in water.

Question 10

What is an alkaline?

Answer 10

Having a pH greater than 7 (basic)