CHEM

162

LAB

#6:

SYNTHESIS

OF

ASPIRIN

Goals

of

this

lab:

•

Synthesize

aspirin

and

evaluate

the

product

for

purity

and

yield

•

Perform

stoichiometry

calculations

to

determine

expected

yield

vs.

percent

yield

•

Apply

Beer's

law

to

determine

the

amount

of

impurity

in

the

crude

product

•

Compare

melting

points

of

the

crude

product

and

pure

aspirin

to

evaluate

determine

relative

purity

of

the

product

Your

lab

report

will

be

grade

on

the

following

criteria

using

a

poor/good/excellent

rating

system:

•

Calculations

are

accurate

and

complete

based

on

data

gathered;

proper

significant

figures

and

units

are

used

•

Data

collected

is

reasonable;

measurements

are

careful

and

accurate

•

Conclusions

are

reasonable

and

logical

•

Lab

report

is

completed

neatly

with

organized

responses

and

legible

handwriting

By

signing

below,

you

certify

that

you

have

not

falsified

data,

that

you

have

not

plagiarized

any

part

of

this

lab

report,

and

that

all

calculations

and

responses

other

than

the

reporting

of

raw

data

are

your

own

independent

work.

Failure

to

sign

this

declaration

will

result

in

5

points

being

deducted

from

your

lab

score.

This

lab

is

worth

60

points:

10

points

for

notebook

pages,

50

points

for

the

lab

report

(Do

NOT

include

your

notebook

pages

when

you

scan

your

report

for

upload

into

Gradescope.)

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