Module #10 - Vocabulary

Question 1

Indicator

Answer 1

A substance that turns one color in the presence of acids and another color in the presence of bases.

Question 2

Acid

Answer 2

A molecule that donates H+ ions.

Question 3

Base

Answer 3

A molecule that accepts H+ ions.

Question 4

Amphiprotic compounds

Answer 4

Compounds that can act as either an acid or a base, depending on the situation.

Question 5

Polyprotic acid

Answer 5

An acid that can donate more than one H+ ion.

Question 6

Molarity (M)

Answer 6

A concentration unit that tells how many moles of a substance are in a liter of solution. It is determined by taking the number of moles of a substance and dividing by the number of liters of solution.

Question 7

Dilution

Answer 7

Adding water to a solution in order to decrease the concentration.

Question 8

Titration

Answer 8

The process of slowly reacting a base of unknown concentration with an acid of known concentration (or vice versa) until just enough acid has been added to react with all of the base. This process determines the concentration of the unknown base (or acid).