5. Acylation of Ferrocene Post-Lab Report

Satisfactory Essays
Name C.W. Lab Section 1 GTA N.C. Station 30

5. Acylation of Ferrocene

Post-lab report

Fill out the appropriate sections below. Show all work. Your calculated answers need to match the answers in the table and be consistent with significant figures.

Results

Amounts and units
Initial weight of Ferrocene 0.225 g
Moles of Ferrocene 1.21 * 10 ^ -3 mol
Initial volume of acetic anhydride 1.00 mL
Moles of acetic anhydride 0.0110 mol
Initial volume of phosphoric acid 0.300 mL
Initial moles of phosphoric acid 5.15*10^-3 mol
Limiting reagent Ferrocene
Moles of limiting reagent 1.21*10^-3 mol
Final weight of product 0.288g
Theoretical yield 29.49
Moles of product 3.73*10^-4 mol
% yield 97% melting point (°C) of product 128°C -131°C

Calculations:
Moles of Ferrocene 0.225g * mol of ferrocene/186.0g = 1.21 *10^-3
Moles of acetic anhydride 1.0mL *1.08g/mL = 1.08g * mol acetic anhydride/102.09g = 0.011moles
Initial moles of phosphoric acid 0.3mL * 1.685 g/mL = 0.506g * mol/98.09g = 5.15*10^-3
Final weight of product vial A = 40.664-40.867=0.203g; vial B = 38.784-38.869 = 0.085g 0.203+0.085g = 0.288g
Theoretical yield = 0.288* 102.09g = 29.49
Moles of product 0.085g* moles/228.01g = 3.73*10^-4 moles
% Yield: g of actual yield/mass of theoretically yield 100% = 0.288g/29.49*100 % = 97%

Complete the following questions and submit with your report.

1. Is an acyl (acetyl) group an EWG or EDG? EWG

2. While running column chromatography, three compounds were eluted (one was yellow, one was orange, and one was red). Name the three compounds, give the Rfs for each compound on the TLC, draw their structures, and explain how you know the elution order. If you did not elute a red compound, you must still explain what it would have been and draw it’s structure, but you won’t have an Rf for it.
Rf= da/ds 0<

You May Also Find These Documents Helpful

• Good Essays

Experiment 42: Ferrocene Preparation Introduction: The purpose of the lab is to prepare ferrocene from ferrous chloride and cyclopentadiene. Ferrocene, an organometallic, is a combination of two cyclopentadienide ions with a ferrous cation, such that the six pi electrons binds every carbon equally to the metal forming a sandwich type structure. Ferrocene has the properties of both an activated benzene (undergoes electrophilic substitution reactions) and a ferrous ion (oxidation reaction). Glyme…

• 532 Words
• 3 Pages
Good Essays
• Good Essays

Jessica Zebracki Organic Chem II Lab 2/15/15 Friedel-Crafts Acylation of Ferrocene and Column Chromatography Introduction: The intention of this lab is to analyze the formation of acetylferrocene using column chromatography. The Friedel-Crafts acylation reaction created acetylferrocene and diacetylferrocene, using phosphoric acid as a catalyst for the reaction between acetic anhydride and ferrocene (once applying heat). During column chromatography, a solution is passed through a filtration system…

• 850 Words
• 3 Pages
Good Essays
• Good Essays

Ferrocene

• 1886 Words
• 8 Pages

Separating Ferrocene and Acetylferrocene by Adsorption Chromatography Separating Ferrocene and Acetylferrocene by Adsorption Chromatography Dry Pack Method Leah Monroe February 27, 2003 Organic Chemistry Lab II Experiment performed on February 18 and 20, 2003 Abstract: Adsorption column chromatography is one way to separate compounds out of a mixture. In this technique, a solid stationary phase called the adsorbent is packed in a glass column and an eluent, which is the mobile phase, moves…

• 1886 Words
• 8 Pages
Good Essays
• Good Essays

lab report 5

• 1078 Words
• 8 Pages

BioLab3 Lab Report 5 Enzymes Student Name: Cooper Lyon I. Enzyme Structure and Function EXERCISE 1 – Preparation of an enzyme activity standard At five minute intervals over the next fifteen minute period, record the color intensity of the solution of each test tube. Time (min) Tube S1 Potato Extract + Catechol Tube S2 Potato Extract + Water Tube S3 Catechol + Water 0 Shade of Yellow Clear/Milky Clear/Milky 5 Shade of Yellow Clear/Milky Clear/Milky 10 Orange Clear/Milky Clear/Milky 15…

• 1078 Words
• 8 Pages
Good Essays
• Better Essays

Lab Report 5

• 1223 Words
• 8 Pages

root tip of a plant spend a comparatively long time in the mitotic phase, whereas those cells comprising slow-growing tissues would spend most of their lives in interphase. Non-dividing cells remain in interphase and never enter the mitotic phase. (Lab Manual 64) Interphase is the synthesis of biological molecules including DNA and duplicated DNA with associated proteins. These comprise the chromatin that begin to condense toward the end of this phase, but are not yet visible. The nucleoplasm…

• 1223 Words
• 8 Pages
Better Essays
• Good Essays

Acetylation of Ferrocene 17. October 1996 Experiment #7 Introduction In this lab we will be utilizing the Friedel Crafts process of acetylation of ferrocene. Ferrocene is an atom of iron bounded by two aromatic rings. We will use some reagents that will cause the ferrocene to add either one acetyl group to an aromatic ring or add two acetyl groups to each of the aromatic rings. In order to determine how well this process had worked we employed: IR spectra analysis, column chromatography,…

• 1743 Words
• 7 Pages
Good Essays
• Satisfactory Essays

Post Lab

• 358 Words
• 2 Pages

Solubility, Crystallization and Melting Point Determination Post-Lab Discussion Guidelines: Part 2A and 2C: Draw tables (as in textbook) showing which combinations were soluble/miscible and which were insoluble/immiscible. Explain why this is so. Why are certain chemicals soluble/miscible when others are not? Part 3A: Calculate % recovery (this is not the same as % yield – see handout from the first day of lab if you’re confused), and determine melting point of your product. Discuss % recovery…

• 358 Words
• 2 Pages
Satisfactory Essays
• Good Essays

Taki Simadiris p1 Brierly Post-lab a. If you did not wash all of the Calcium Carbonate out of the beaker and into the filter during step 5, would your percent yield be larger or smaller? If you do not wash all of the Calcium Carbonate out, then the percent yield would be smaller because there is enough calcium carbonate left in the beaker that would have attributed to the final yield. b. If you used tap water instead of DI water what do you think would happen? Why? If you used tap water, the coffee…

• 483 Words
• 2 Pages
Good Essays
• Powerful Essays

Biology 160 Lab Manual Tacoma Community College Last update 06/03/2013 This page left intentionally blank Table of Contents Table of Contents i Laboratory 1: Principles of the Scientific Method 4 In-Lab Report Sheet 12 This page has been left intentionally blank 27 Laboratory 2: Scientific Methodology & Enzyme Activity 28 In-Lab Report Sheet 28 Objectives 33 Introduction 33 Parts of the Swift M5 Microscope 33…

• 32334 Words
• 130 Pages
Powerful Essays
• Satisfactory Essays

Name: Mugabe Rodrigue Class: Grade 11B Subject: Biology Topic: DNA Extraction From Onion Date: 20/1/2014 Introduction: DNA, or deoxyribonucleic acid, is the hereditary material in organisms. Nearly every cell in an organism has the same DNA. Most DNA is located in the cell nucleus.The information in DNA is stored as a code made up of four chemical bases: adenine (A), guanine (G), cytosine (C), and thymine (T). The order, or sequence, of these bases determines the information available for…

• 720 Words
• 3 Pages
Satisfactory Essays