a) Using the line drawings for trans-cinnamic acid and methyl tert butyl ether (MTBE), give the...
a) Using the line drawings for trans-cinnamic acid and methyl tert butyl ether (MTBE), give the chemical reaction that trans-cinnamic acid gave during extraction (with formal charges included).
b) Write out the skeletal structures for the reaction that occurred when the aqueous extract of trans-cinnamic acid was neutralized.
Homework Answers
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a) Using the line drawings for trans-cinnamic acid and methyl
tert butyl ether (MTBE), give the...
This is the chemical formula for methyl tert-butyl ether (the clean-fuel gasoline additive MTBE): CH3OC(CH3)3 A...
This is the chemical formula for methyl tert-butyl ether (the clean-fuel gasoline additive MTBE): CH3OC(CH3)3 A chemical engineer has determined by measurements that there are 3.0 moles of carbon in a sample of methyl tert-butyl ether. How many moles of hydrogen are in the sample? Be sure your answer has the correct number of significant digits.
Post-Lab Questions HW1. Solid methyl trans-cinnamate is (basic/ acidic/ neutral)? Solid trans-cinnamic acid is (basic/ acidic/...
Post-Lab Questions HW1. Solid methyl trans-cinnamate is (basic/ acidic/ neutral)? Solid trans-cinnamic acid is (basic/ acidic/ neutral)? If you could not perform an FT-IR, GC-MS, or 'H/C NMR, what two things could you do in the lab to validate the presence of the product upon isolation given that both the starting material and product are white solids? 2. HW2. A wash removes undesired materials from the phase the product is in to another phase. An extraction removes the desired product...
Name: Date: Separation of Acid/Base/Neutral compounds using liquid-liquid extraction OCH CHO HN Benzocaine Molecular Weight: 165.19...
Name: Date: Separation of Acid/Base/Neutral compounds using liquid-liquid extraction OCH CHO HN Benzocaine Molecular Weight: 165.19 Melting Point: 88-90 °C 1,1-biphenyl Molecular Weight: 154.21 Melting Point: 68-70 °C trans-cinnamic acid Molecular Weight: 148.16 Melting Point: 132-135 °C Question 1: Identify the following compounds as Acid, Base or Neutral. (2 points) a. Benzocaine: b. Biphenyl: c. Trans-cinnamic acid: (2 points) _ (2 points) Question 2: Draw the structure in the box (5 points each): NaOH OCH,CH, HCM NaOHA HC form. Ples...
Complete the flowchart below for the following extraction: Benzoic acid 4-aminoacetophenone benzophenone Step 1: Disso...
Complete the flowchart below for the following extraction: Benzoic acid 4-aminoacetophenone benzophenone Step 1: Dissolve in ethyl acetate Step 2: Add 2M NaOH Step 3: Mix and Identify how layers separated: DRAW STRUCTURES IN THE CORRECT FORM AT THAT STEP (neutral? Salt? etc) AQUEOUS ORGANIC Step 4: Add 3 M HCL DRAW STRUCTURES OF COMPONENTS IN AQUEOUS LAYER Step 5: Collect with vacuum filtration DRAW STRUCTURE OF COMPONENTTS 2. Write a balanced chemical equation for each reaction which occurs in...
Exercise 2 Separation of a Mixture Based on Acid-Base Properties One purpose of this exercise is...
Exercise 2 Separation of a Mixture Based on Acid-Base Properties One purpose of this exercise is to learn how to use a separatory funnel to extract a single component away from other compounds in solution. To do so, we will apply the principles of solubility and acid-base behavior you’re seeing in class. One of the compounds is neutral in the acid-base sense. It has no ability to either donate or accept a proton from an aqueous solution, and will remain...
help with identifiying each unknown in extraction and washing experiment. the ir spectra are given below,...
help with identifiying each unknown in extraction and washing
experiment. the ir spectra are given below, along with data, and
the lab sheet is attached.
Neutral Solid Primary amine (Aniline) 3403cm - NE presence Transmittance 60 3258cm 1 streren NOUD Streich 50 Ctretcher strator NH2 aromatto 11 NO2 aring 2-nitroaniline K LILI 3600 3200 2800 2400 2000 1800 1600 Wavenumber cm-1 1400 1200 1000 800 600 Basic Solid primary amine Transmittance I NH2 Stretch p-acetvianiline 70 60 CS HG NO...
Give a detailed mechanism for this reaction and give a separation scheme NUCLEOPHILIC ACYL SUBSTITUTION: Synthesis...
Give a detailed mechanism for this reaction and give a separation
scheme
NUCLEOPHILIC ACYL SUBSTITUTION: Synthesis of an Ester Isoamyl acetate (Banana Oil) Purpose This experiment demonstrat and alcohol. The technique of refluxing the reaction mixture is introduced. es the procedure for the synthesis of an ester from a carboxylic acid Esters are an important functional group in organic chemistry, and esters are found widely distributed in nature. Many lower molecular weight esters are associated with natural fuit flavors and...
Experiment Write Up Proposal You will write up a synthesis procedure for one reaction that could...
Experiment Write Up Proposal You will write up a synthesis procedure for one reaction that could be potentially run in a face- to-face Chem 2321 lab session. Your proposal will include an introduction and procedure. The procedure will include step-by-step instructions for running the reaction (including reaction monitoring), work-up. (product isolation and purification), and analysis (characterization). You will need to include sample calculations for percent yield and provide sample spectra analysis. You must upload your proposal as a single document...
Post-Lab Questions HW1. Solid methyl trans-cinnamate is (basic/ acidic/ neutral)? Solid trans-cinnamic acid is (basic/ acidic/ neutral)? If you could not perform an FT-IR, GC-MS, or 'H/C NMR, what two things could you do in the lab to validate the presence of the product upon isolation given that both the starting material and product are white solids? 2. HW2. A wash removes undesired materials from the phase the product is in to another phase. An extraction removes the desired product...
Name: Date: Separation of Acid/Base/Neutral compounds using liquid-liquid extraction OCH CHO HN Benzocaine Molecular Weight: 165.19 Melting Point: 88-90 °C 1,1-biphenyl Molecular Weight: 154.21 Melting Point: 68-70 °C trans-cinnamic acid Molecular Weight: 148.16 Melting Point: 132-135 °C Question 1: Identify the following compounds as Acid, Base or Neutral. (2 points) a. Benzocaine: b. Biphenyl: c. Trans-cinnamic acid: (2 points) _ (2 points) Question 2: Draw the structure in the box (5 points each): NaOH OCH,CH, HCM NaOHA HC form. Ples...
help with identifiying each unknown in extraction and washing
experiment. the ir spectra are given below, along with data, and
the lab sheet is attached.
Neutral Solid Primary amine (Aniline) 3403cm - NE presence Transmittance 60 3258cm 1 streren NOUD Streich 50 Ctretcher strator NH2 aromatto 11 NO2 aring 2-nitroaniline K LILI 3600 3200 2800 2400 2000 1800 1600 Wavenumber cm-1 1400 1200 1000 800 600 Basic Solid primary amine Transmittance I NH2 Stretch p-acetvianiline 70 60 CS HG NO...
Give a detailed mechanism for this reaction and give a separation
scheme
NUCLEOPHILIC ACYL SUBSTITUTION: Synthesis of an Ester Isoamyl acetate (Banana Oil) Purpose This experiment demonstrat and alcohol. The technique of refluxing the reaction mixture is introduced. es the procedure for the synthesis of an ester from a carboxylic acid Esters are an important functional group in organic chemistry, and esters are found widely distributed in nature. Many lower molecular weight esters are associated with natural fuit flavors and...
Experiment Write Up Proposal You will write up a synthesis procedure for one reaction that could be potentially run in a face- to-face Chem 2321 lab session. Your proposal will include an introduction and procedure. The procedure will include step-by-step instructions for running the reaction (including reaction monitoring), work-up. (product isolation and purification), and analysis (characterization). You will need to include sample calculations for percent yield and provide sample spectra analysis. You must upload your proposal as a single document...
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