If you mistakenly extracted the ether solution of the mixture with NaOH first instead of NaHCO3,...
If you mistakenly extracted the ether solution of the mixture with NaOH first instead of NaHCO3, what would happen? And why? Briefly Explain.
The three compounds in the mixture were: p-toluic acid(pKa=4.2 strong acid), p-tert butyl phenol(pKa=10.2 weak acid) and acetanilide (pka=20 neutral)
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If you mistakenly extracted the ether solution of the
mixture with NaOH first instead of NaHCO3,...
if you mistakenly extracted the ether solution first with NaOH solution and then with NaHCO3...
if you mistakenly extracted the ether solution first with NaOH solution and then with NaHCO3 solution, no crystals would be produced upon acidification of the NaHCO3layer. Briefly explain
An unknown mixture (dissolved in diethyl ether) contains only 2 of the following : benzoic acid,...
An unknown mixture (dissolved in diethyl ether) contains only 2 of the following : benzoic acid, phenol, aniline and napthalene. You use the acid-base extraction method and want to identify the 2 compounds in your original mixture. 1) To separate the organic acid you add NaOH and to separate the organic base you add HCl.In both cases these extractions are followed by extractions with water. Why do we add water? Why is this step important? (A clear explanation please). 2)When...
A solution that is 0.500 M HF and 0.240 M NaOH reacts to produce a mixture...
A solution that is 0.500 M HF and 0.240 M NaOH reacts to produce a mixture with what pH? The pKa of HF is 3.20. Hint: This is two reactions. The first involves a strong base with a weak acid —it will be quantitative. The second is an equilibrium reaction, the winner of the first reaction reacts with water. The second gives you the pH. Please show all steps.
Construct a flow chart that follows the separation of a mixture of 2-nitrophenol (an organic acid...
Construct a flow chart that follows the separation of a mixture
of 2-nitrophenol (an organic acid not used in this experiment with
a pKa = 7.26) and anthracene (neutral organic). Use scheme 1 as a
template. Your reagents available are the same ones used in this
lab.
Scheme 1. The acid-base extraction of p-creol (an acidic phenol) and para-nitrotoluene (a neutral organic compound). OH 1. dissolve in TBME 2. Add NaOH/H,0 ON less dense TBME Layer Remove bottom laver Place...
Construct a flow chart that follows the separation of a mixture of 2-nitrophenol (an organic acid...
Construct a flow chart that follows the separation of a
mixture of 2-nitrophenol (an organic acid not used in this
experiment with a pKa = 7.26) and anthracene (neutral organic). Use
scheme 1 as a template. Your reagents available are the same ones
used in this lab.
Scheme 1 is shown below!
Scheme 1. The acid-base extraction of p-cresol (an acidic phenol) and para-nitrotoluene (a neutral organic compound). O 1. dissolve in TBME 2. Add NaOH/H, less dense TBME layer...
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...
Extraction Q1. Why doesn’t the neutral organic compound dissolve in the 1.5 M NaOH solution? Q2....
Extraction Q1. Why doesn’t the neutral organic compound dissolve in the 1.5 M NaOH solution? Q2. Why is diethyl ether a good choice for the organic solvent in this extraction experiment? Q3. What experimental difficulty would you encounter if you neglected to include the drying step before evaporating the ether solution of the neutral organic compound? Q4. Why are the two organic compounds recrystallized before their melting points are determined? Q5. What IR bands are most useful in distinguishing a...
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...
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...
Please give detailed answers to the pre and post lab questions. Thank you! NUCLEOPHILIC DISPLACEMENT- FORMATION...
Please give detailed answers to the pre and post lab questions.
Thank you!
NUCLEOPHILIC DISPLACEMENT- FORMATION OF AN ETHER BY AN SN2 REACTION Bond formation by use of an SN2 reaction is very important for organic and biological synthesis. Many new bonds formed make use of this versatile reaction pathway. In this reaction, one partner is the nucleophile and the other partner is the electrophile. The electrophile will have a leaving group that will be lost in the reaction. In...
Construct a flow chart that follows the separation of a mixture
of 2-nitrophenol (an organic acid not used in this experiment with
a pKa = 7.26) and anthracene (neutral organic). Use scheme 1 as a
template. Your reagents available are the same ones used in this
lab.
Scheme 1. The acid-base extraction of p-creol (an acidic phenol) and para-nitrotoluene (a neutral organic compound). OH 1. dissolve in TBME 2. Add NaOH/H,0 ON less dense TBME Layer Remove bottom laver Place...
Construct a flow chart that follows the separation of a
mixture of 2-nitrophenol (an organic acid not used in this
experiment with a pKa = 7.26) and anthracene (neutral organic). Use
scheme 1 as a template. Your reagents available are the same ones
used in this lab.
Scheme 1 is shown below!
Scheme 1. The acid-base extraction of p-cresol (an acidic phenol) and para-nitrotoluene (a neutral organic compound). O 1. dissolve in TBME 2. Add NaOH/H, less dense TBME layer...
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...
Please give detailed answers to the pre and post lab questions.
Thank you!
NUCLEOPHILIC DISPLACEMENT- FORMATION OF AN ETHER BY AN SN2 REACTION Bond formation by use of an SN2 reaction is very important for organic and biological synthesis. Many new bonds formed make use of this versatile reaction pathway. In this reaction, one partner is the nucleophile and the other partner is the electrophile. The electrophile will have a leaving group that will be lost in the reaction. In...
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