Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Question
please help with writing a full lab report
The measured masses are as follows;
2-naphtol-2.8931g
Iron chloride -1.1346 g
mass of product-3.2566g
Transcribed Image Text:OH
0140769
filler
EXPERIMENT 11
RADICAL COUPLING REACTION
(Preparation of 1, 1-bis-2-naphthol)
FeCl3
- Drop of H₂O
- Grinding
- rt
OH
1.13909
1, 11199
1.13579
Chemicals Required:
2.88069
2.8843
2-Naphthol - 2.88 g
Iron(III) chloride - 1.10 g
Water - 2 drops
-sumins
2.88 242
Toluene (for recrystallization)
640 41725
P
Procedure:
2.8
0.1082
Grind a mixture of 2-naphthol (2.88 g) and iron(III) chloride (1.10 g) with 2 drops of water in
an agate (or porcelain) mortar pestle for about 20 minutes. Allow the mixture to stand for 1 hr
10 mins with a little grinding now and then. Transfer the mixture with water (40 ml) into a
100 ml beaker and boiled for 10-15 minutes. Cool the mixture and filter the product, wash
with boiling water (10 ml), dry and recrystallize from toluene. Report the yield and melting
point of the product. Remember to hand in your product.
Data Treatment and Analysis
1. Calculate the % yield for the product and show your working. Determine the % error if
possible.
2. Compare your physical quantities or data (i.e. m.p.) of your product to literature values if
any and
draw an overall conclusion.
Questions
1. State the green components of this reaction.
2. Give one industrial application of 2-naphthol.
Lab Report: Staple and submit your completed Report Form and IR spectra
3. Give reaction mochanism
OH
1028
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