Module 10

Question 0

Properties of bases

Answer 0

1. Bases taste bitter
2. Bases are slippery to the touch when dissolved in water
3. Bases turn red litmus paper blue

Question 1

Properties of acids

Answer 1

1. Acids taste sour
2. Acids are covalent compounds that conduct electricity when added to water
3. Acids turn blue litmus paper red

Question 2

Indicator

Answer 2

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

Question 3

Acid

Answer 3

A molecule that donates H+ ions

Question 4

Base

Answer 4

A molecule that accepts H+ ions

Question 5

Amphiprotic compound

Answer 5

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

Question 6

Chemically, what happens when you dissolve ionic compounds in water

Answer 6

They split into their constituent ions

Question 7

Polyprotic acid

Answer 7

An acid that can donate more than one H+ ion

Question 8

Guideline for acid base reactions

Answer 8

ACID + BASE ➡️ SALT + WATER

neutralization reaction

Question 9

Molarity

Answer 9

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 amid dividing by the number of liters of solution.
(#moles/#liters)

Question 10

Dilution

Answer 10

Adding water to a solution in order to decrease the concentration

Question 11

Dilution equation

Answer 11

M1V1 = M2V2

Question 12

When number of moles is divided by volume (in liters), you get molarity

Answer 12

When molarity is multiplied by volume (in liters), you get number of moles

Question 13

Titration

Answer 13

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).

Question 14

End point of titration

Answer 14

When the indictor changes color