Homework Answers
Add Answer to:
please help with all questions
Which of the following are more acidic than water? Select one...
Acid/Base Extraction ACID/BASE EXTRACTION Provide a flow chart detailing the acid/base extraction/separation of the compounds shown...
Acid/Base Extraction
ACID/BASE EXTRACTION Provide a flow chart detailing the acid/base extraction/separation of the compounds shown below. Your answer must employ the following reagents: methylene chloride, hydrochloric acid (1M & 6M), sodium hydroxide (1M & 6M), 10% sodium bicarbonate (aq). Clearly indicate the product(s) and layers formed following each step of your separation scheme. HINT: phenol is soluble in sodium hydroxide solution but insoluble in neutral water or sodium bicarbonate solution. Benzoic acid is soluble in both sodium hydroxide and...
Answer the following before coming to lab: 1.) Based on what you saw last week, which...
Answer the following before coming to lab: 1.) Based on what you saw last week, which enantiomer of tartaric acid would you expect to co- crystallize with (SS)-1,2-diammoniumcyclohexane? 2.) If you had a neutral aqueous solution of triethylamine, would you add acid or base in order to extract it with an organic solvent? 3.) Now, consider a dichloromethane solution of triethylamine. Would you extract with acidic aqueous or basic aqueous solution in order to get the triethylamine out of the...
2. You found that naphthalene is more soluble in petroleum ether than water. How do you...
2. You found that naphthalene is more soluble in petroleum ether than water. How do you account for this difference in solubility? 3. Solutions of hydrochloric acid caused the light bulb to glow (or caused the conductivity meter to report a higher value), brighter than solutions of acetic acid. How do you account for the difference in behavior between these two compounds? 4. Hexane is an organic solvent that has a density of 0.6603 g/cm at 20°C. If hexane is...
Attached below are the pages from this lab report to help give context to the questions....
Attached below are the pages from this lab report to help give
context to the questions. Please be as detailed as possible when
answering the questions and include any relevant information about
intermolecular forces at play. Thank you for your help!
Here are the questions which I need answered. Thank you in
advance for your help! :) Please be as detailed as possible and
discuss any intermolecular forces in detail if they are relevant to
the question. Thanks!
PARTA. SEPARATION...
Would the methylene chloride layer be above or below the experiment? Justify your answer. 1. aqueous layer in today...
Would the methylene chloride layer be above or below the experiment? Justify your answer. 1. aqueous layer in today's ium carbonate used in the isolation of caffeine? Be specific as to the 2. Why is potass chemical species the carbonate may act on. Why was sodium sulfate used? 3. 4. After introducing 1.0 g of potassium carbonate into the centri hot water extract, it was capped, shaken, and then cooled to room temperature. Following this, roug minute. Why wasn't the...
pre-laboratory Questions A 1 Explain why it is more efficient to make several extractions using small...
pre-laboratory Questions A 1 Explain why it is more efficient to make several extractions using small portions rather than one extraction using the same total volume. 2 Define the following terms: Drying agent intensity Drying agent capacity 3 Select the upper layer in each pair of mixed solvents (see Appendix C): Water and benzene Water and carbon tetrachloride Water and ether 4 Write an equation for the reaction of a benzoic acid with aqueous sodium bicarbonate. 5 Complete the following...
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...
Which of the following statements are correct? More than one answer is possible. (Select all that...
Which of the following statements are correct? More than one answer is possible. (Select all that apply.) LiF will have a higher vapor pressure at 25 °C than H2S. NH3 will have a higher vapor pressure at 25 °C than BeO. NH3 will have a lower vapor pressure at –50 °C than NO. MgO will have a higher vapor pressure at 25 °C than CH3CH2OH. Cl2 will have a higher boiling point than Ar.
please write all correct answers, there's more than one Which of the following aqueous solutions are...
please write all correct answers, there's more than
one
Which of the following aqueous solutions are good buffer systems? 0.22 M hydrochloric acid + 0.19 M sodium chloride 0.26 M ammonium bromide + 0.30 M ammonia 0.13 M hydrofluoric acid + 0.17 M sodium fluoride 0.38 M hydrocyanic acid + 0.21 M potassium cyanide 0.10 M potassium hydroxide + 0.23 M potassium chloride Submit Answer Retry Entire Group 9 more group attempts remaining
Organic Chemistry Lab question In the experiment we did acid-base extractions to find impurities. The impurity...
Organic Chemistry Lab question In the experiment we did acid-base extractions to find impurities. The impurity was either benzoic acid (acid) or 4-chloroaniline (base) So in this experiment we did Acid-Base extraction with an unknown compound. So we had an unknown of 0.150 grams and mixed it with 20 mL of diethyl ether. We placed this in a separatory funnel and added 2mL of 1.0 NaOH solution to the separatory funnel and placed the stopper over the top of the...
Acid/Base Extraction
ACID/BASE EXTRACTION Provide a flow chart detailing the acid/base extraction/separation of the compounds shown below. Your answer must employ the following reagents: methylene chloride, hydrochloric acid (1M & 6M), sodium hydroxide (1M & 6M), 10% sodium bicarbonate (aq). Clearly indicate the product(s) and layers formed following each step of your separation scheme. HINT: phenol is soluble in sodium hydroxide solution but insoluble in neutral water or sodium bicarbonate solution. Benzoic acid is soluble in both sodium hydroxide and...
Answer the following before coming to lab: 1.) Based on what you saw last week, which enantiomer of tartaric acid would you expect to co- crystallize with (SS)-1,2-diammoniumcyclohexane? 2.) If you had a neutral aqueous solution of triethylamine, would you add acid or base in order to extract it with an organic solvent? 3.) Now, consider a dichloromethane solution of triethylamine. Would you extract with acidic aqueous or basic aqueous solution in order to get the triethylamine out of the...
2. You found that naphthalene is more soluble in petroleum ether than water. How do you account for this difference in solubility? 3. Solutions of hydrochloric acid caused the light bulb to glow (or caused the conductivity meter to report a higher value), brighter than solutions of acetic acid. How do you account for the difference in behavior between these two compounds? 4. Hexane is an organic solvent that has a density of 0.6603 g/cm at 20°C. If hexane is...
Attached below are the pages from this lab report to help give
context to the questions. Please be as detailed as possible when
answering the questions and include any relevant information about
intermolecular forces at play. Thank you for your help!
Here are the questions which I need answered. Thank you in
advance for your help! :) Please be as detailed as possible and
discuss any intermolecular forces in detail if they are relevant to
the question. Thanks!
PARTA. SEPARATION...
Would the methylene chloride layer be above or below the experiment? Justify your answer. 1. aqueous layer in today's ium carbonate used in the isolation of caffeine? Be specific as to the 2. Why is potass chemical species the carbonate may act on. Why was sodium sulfate used? 3. 4. After introducing 1.0 g of potassium carbonate into the centri hot water extract, it was capped, shaken, and then cooled to room temperature. Following this, roug minute. Why wasn't the...
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 write all correct answers, there's more than
one
Which of the following aqueous solutions are good buffer systems? 0.22 M hydrochloric acid + 0.19 M sodium chloride 0.26 M ammonium bromide + 0.30 M ammonia 0.13 M hydrofluoric acid + 0.17 M sodium fluoride 0.38 M hydrocyanic acid + 0.21 M potassium cyanide 0.10 M potassium hydroxide + 0.23 M potassium chloride Submit Answer Retry Entire Group 9 more group attempts remaining
Most questions answered within 3 hours.
-
Do you believe that some things that fall into the category of
“pseudoscience” are worth believing...
asked 19 minutes ago -
A 0.100-kg, 59.6-cm-long uniform bar has a small 0.070-kg mass
glued to its left end and...
asked 10 minutes ago -
Direct Labor Variances
The following data relate to labor cost for production of 4,600
cellular telephones:...
asked 24 minutes ago -
On July 27, 2018, shareholders of the Walt Disney Company and
21st Century Fox agreed to...
asked 3 minutes ago -
Write a brief response, 30-90-words, for each question below. 1.
In your own words, define “Auditing.”...
asked 8 minutes ago -
Water flows through a 8-foot wide and 4-foot tall rectangular
channel. If the desired flow rate...
asked 15 minutes ago -
Cruz Video Center accumulates the following cost and net
realizable data at December 31.
Cameras $14,700...
asked 19 minutes ago -
1. Describe the differences between management in the nonprofit
sector and management in other sectors. How...
asked 25 minutes ago -
Identify the location of the following corresponding operand if
the address field in an instruction contains...
asked 27 minutes ago -
A new battery's voltage may be acceptable (A) or unacceptable
(U). A certain flashlight requires two...
asked 29 minutes ago -
Water has significant IMF, which result in many of its unique
properties—high boiling point relative to...
asked 48 minutes ago -
I need help with an executive summary for Adidas Items to be
included are a discription...
asked 41 minutes ago