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Question 1

Esterification Reaction

Answer 1

An acid anhydride (or carboxylic acid) react with alcohols to form esters

Question 2

Anhydride is

Answer 2

water removed from an acid

Question 3

FeCl3 reacts with what to turn purple

Answer 3

phenol group

Question 4

What makes salicylic acid unable to be consumed directly

Answer 4

-OH group (alcohol). Phenolic hydroxyl group

Question 5

Acetic acid is a part of what food

Answer 5

vinegar

Question 6

Ace-tyl-sali-cylic acid

Answer 6

Ace-tyl-sali-cylic acid

Question 7

Spell the thing that is produced when salicylic acid and acetic anhydride combine

Answer 7

Ace-tyl-sali-cylic acid

Question 8

Salicylic acid is a benzene ring with a

Answer 8

alcohol group and a carboxyl acid

Question 9

Do NOT call -OH what

Answer 9

DO NOT call it hydroxide

Question 10

Acetic anhydride is an ___ anhydride

Answer 10

acid anhydride

Question 11

An alcohol group attached to a benzene ring is called

Answer 11

a phenol

Question 12

Alcohol is a __ acid

Answer 12

Weak

Question 13

A phenol is a ____ acid

Answer 13

Strong

Question 14

All the negative side effects are linked to what

Answer 14

The hydroxyl group

Question 15

The hydrogen from the alcohol group on salicylic acid attaches to what

Answer 15

The carbon on acetic anhydride

Question 16

What are the products of this esterification reaction

Answer 16

Acetic acid and acetylsalicylic acid

Question 17

The esterification reaction is jump started by what

Answer 17

An acid (H2So4)

Question 18

Phenol group gets converted into

Answer 18

An ester

Question 19

Why is it called acetylsalicylic acid and not just an ester

Answer 19

Because it still has a carboxylic acid

Question 20

What is a lachrymator

Answer 20

A eye and nasal irritant

Question 21

Concentrated sulfuric acid jump starts the reaction because

Answer 21

its a strong acid and a strong oxidizer

Question 22

Concentrated sulfuric acid is a strong oxidizer and what

Answer 22

A strong acid

Question 23

The reason the aspirin creation has to happen in ice water is because

Answer 23

Cold lower solubility, allowing crystals to form

Question 24

What was the goal of the 3rd lab

Answer 24

To find the % of salicylic acid in commercial medication

Question 25

ASA+NaOH creates

Answer 25

A form of ASA that does not have hydrogen

Question 26

After creating the salicylic acid you add water to dilute it to

Answer 26

1 liter

Question 27

To the stock solution you need to add H+ ions to reform the

Answer 27

salicylic acid

Question 28

You add FeCl3-KCl-HCl in excess to the stock solution to add H+ ion that make

Answer 28

Salicylic acid

Question 29

FeCl3 is added to stock so that

Answer 29

It can react with the phenol of the salicylic acid

Question 30

KCL is added to

Answer 30

Maintain same ionic strength

Question 31

HCl is added to

Answer 31

Add the H+ ion to make salicylic acid

Question 32

What is added to the stock solution

Answer 32

FeCl3-KCl-Hcl

Question 33

Analytical wavelength

Answer 33

Is where absorptance is the highest

Question 34

What is Beer's Law

Answer 34

A=Ebc

Question 35

In Beer's law (a=ebc) what is a

Answer 35

Absorptancy

Question 36

In Beer's Law (a=ebc) what is e

Answer 36

Epsilon

Question 37

In Beer's Law (A=ebc) what is b

Answer 37

The pathlength of light through the solution (the width of the cuvette)

Question 38

In Beer's law (a=ebc) what is c

Answer 38

The concentraion

Question 39

What is b typically

Answer 39

1cm

Question 40

So, is b is always one that epsilon times b is just equal to epsilon. This is the ___

Answer 40

slope

Question 41

The slope of concentration is what

Answer 41

Epsilon

Question 42

Slope is found by

Answer 42

Rise/run

Question 43

Beer's law (a=ebc) has NO

Answer 43

Y-intercept

Question 44

If beer's law (a=ebc) has no y intercept then the equation starts

Answer 44

At the origin

Question 45

Hydrolysis reaction is

Answer 45

A reaction of a substance with water

Question 46

Why is Hcl added to the stock

Answer 46

To form salicylic acid

Question 47

What is a hydrolysis reaction

Answer 47

A reaction of a substance with water

Question 48

What is a reference (blank) solution

Answer 48

A solution containing all the components of the solution except the species being determined

Question 49

What is an esterification reaction

Answer 49

Reaction of an alcohol with a carboxylic acid (or an acid anhydride) to form an ester

Question 50

What is analytical wavelength

Answer 50

The place where absorptance is the highest

Question 51

What is carboxylic acid

Answer 51

OH=C-O

Question 52

What is an ester

Answer 52

O=C-O-CH3

Question 53

What is acetic anhydride

Answer 53

Ch3-C(=O)-O-C(=O)-Ch3