Acids and Base (with Titration)

Question 1

Identify the solution.

a. pH is below 7
b. High H+ concentrations
c. Low OH- concentrations

Answer 1

Acidic solution

Question 2

Identify the solution.

a. pH is 7
b. H+ and OH- concentrations match pure water

Answer 2

Neutral

Question 3

Identify the solution.

a. pH is above 7
b. Low H+ concentrations
c. High OH- concentrations

Answer 3

Basic or alkaline

Question 4

Identify if acid or base.

A compound that can lose H+.

Answer 4

Acid

Question 5

Identify if acid or base.

Proton donors

Answer 5

Acid

Question 6

Identify if acid or base.

Any compound that can bond (gain) to H+.

Answer 6

Base

Question 7

Identify if acid or base.

Proton acceptors

Answer 7

Base

Question 8

Identify if acid or base.

Contain at least one hydroxyl group.

Answer 8

Acid

Question 9

What do you call the two substances that bear formulas that differ by one hydrogen ion?

Answer 9

Conjugate pair

Question 10

How many conjugate pairs can be found in an acid-base reaction?

Answer 10

2

Question 11

What do you call the substances that can either gain or lose hydrogen ions?

Answer 11

Amphiprotic

Question 12

True or False.

Water is an amphiprotic molecule.

Answer 12

True.

Question 13

What do you call the solution that resists a change in pH when acids and bases are added to them?

Answer 13

Buffer solution

Question 14

What compounds form hydroxide ions when they dissolve in water?

Answer 14

Bases

Question 15

What type of acid is only able to transfer one hydrogen ion to water?

Answer 15

Monoprotic acid

Question 16

What volumetric analysis is often observed using chemical indicators in which substances react to completion?

Answer 16

Titration

Question 17

What can show the amount of analyte present in a titration process?

Answer 17

Quantity of titrant that is required

Question 18

In titration, what substance has no concentration or identity?

Answer 18

Analyte

Question 19

In a titration, what substance has accurately known concentration or identity?

Answer 19

Titrant or Standard

Question 20

In a titration, what substance produces distinct colors at certain pH?

Answer 20

Indicator

Question 21

What type of titration determines the concentration of an acid or base?

Answer 21

Acid-Base Titration

Question 22

What type of titration is based on complex formation?

Answer 22

Complexometric Titration

Question 23

What type of titration is based on reactions that yield ionic compounds of limited solubility?

Answer 23

Precipitation titration

Question 24

What type of titration determines the concentration of an unknown solution (analyte) that contains an oxidizing or reducing agent?

Answer 24

Redox Titration

Question 25

What is the point in the titration shows the completion of the reaction?

Answer 25

Equivalence point

Question 26

What do you call the point in the titration where visible changes in the indicator occur?

Answer 26

Endpoint

Question 27

How do equivalence points happen?

Answer 27

It occurs when the quantity of added titrant is the exact amount necessary for the stoichiometric reaction.

Question 28

True or False. | The endpoint is the ideal theoretical result we seek in titration.

Answer 28

False. | The equivalence point is the ideal result.

Question 29

What is the most widely used acidic solution for titration?

Answer 29

Hydrochloric acids (HCL)

Question 30

What is the most common basic solution used for titration?

Answer 30

Sodium hydroxide (NaOH)

Question 31

Identify the theory. | "An acid is a proton donor and a base is a proton acceptor."

Answer 31

Bronsted-Lowry Theory

Question 32

What do you call the ion that bears both a positive and a negative ion?

Answer 32

Zwitterion

Question 33

"The position of an equilibrium always shifts in such direction to relieve a stress that is applied to the system."

Answer 33

Le Chatelier principle

Question 34

What is the equation that is used to calculate the pH of the buffer solution?

Answer 34

Henderson-Hasselbach equation