Chemistry Acid Base Extraction Pre Lab

Name:Exp #
Date:
Lab Partner
Title:
1. Abstract and Purpose: (2 point).
2. Balanced equation: (2 point)
There are several free structure drawing programs available e.g. acdlabs.com. If you
don’t have a drawing program, hand draw the structures.
3. Reagent Table (Add more rows when needed) (3 points)
Name
M.W.
(g/mol)
Density*
(g/mL)
M.P.*
(°C)
B.P.*
(°C)
Amount
(grams
or mL)
Moles
Hazards/Precautions
N.B. For solvents (like methanol) or drying agents (e.g. sodium sulfate), you don’t
need to calculate the moles.
* Report only when applicable
4. Calculations: Shown each calculation for moles of reagents, limiting reagent, theoretical yield
and percent yield. (4 points)
Calculating moles of reagents:
Determining limiting reagent:
Name:
Exp #
Date:
Lab Partner
The limiting reagent is
Calculating theoretical yield:
The theoretical yield is
The actual yield is
Calculating Percent yield:
Reaction percent yield is
5. Procedure, Observations and Data
Procedure (4 point)
Observations and Lab Data (4 point)
A summary of the procedure done with bullet points)
Report all observations and all data that you collect in the
(2 points)
lab here
6. Conclusions and discussions (4 points)
7. Answers to Pre-lab questions (1 point)
Name:
Exp #
Date:
Lab Partner
8. Answers to Post-lab questions (2 points)
I. Benzoic acid is soluble in diethyl ether but not water; however, benzoic acid
is extracted from diethyl ether with aqueous sodium hydroxide.
1. Complete the acid-base reaction below by writing the products of the reaction and
label the acid, the base, conjugate acid, and conjugate base.
2. Indicate the solubility of benzoic acid and its conjugate base in diethyl ether and in
water.
II. Aniline, an amine, is soluble in diethyl ether but not water; however, aniline is
extracted from diethyl ether with aqueous hydrochloric acid.
1. Complete the acid-base reaction below by writing the products of the reaction and
label the acid, the base, conjugate acid, and conjugate base.
2. Indicate the solubility of aniline and its conjugate acid in diethyl ether and in water.
9. References: (1 point)
10. Image of your lab notebook. (3 point)
Name:
Exp #
Lab Partner
I reserve the right to modify points on this template at any time.
Date:

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