Is ether a good solvent for TLC? What would be expected to be seen on a TLC plate if 2,6-dimethylaniline was spotted on lane 1 and 2,6-dimethylnitrobenzene on lane 2 and developed in ether?
Q: CH3OH can be synthesized by the reaction : CO (g) + 2H2 (g) -----> CH3OH (g) How many liters of…
A: The balanced chemical equation provided is:CO(g)+2H2(g)→CH3OH(g)From this equation, it is clear…
Q: What is the sodium chloride equivalent value for sorbic acid
A: The concept of a sodium chloride equivalent value for sorbic acid can be a bit confusing since these…
Q: 2 This question deals with some organic reaction mechanisms. (a) This question concerns some organic…
A:
Q: A student suggests that the molecule on the right can be made from a single starting molecule 1,…
A: Step 1:The first step of the reaction are in reaction of the starting molecule 1 with…
Q: Please answer in typing
A: Approach to solving the question: cyclopentadienyl ligand (C6H5-) have two pi bonds and one negative…
Q: Please write step by step on paper
A: Step 1: Step 2: Step 3: Step 4:
Q: 17
A: (i) 1. Relationship between pKb and Kb:We are given the pK_b of ethylamine (3.19). We can use the…
Q: For the reaction below: CH4 ⚫OH ⚫CH3 + H-OH a. Estimate the gas phase enthalpy change using bond…
A:
Q: None
A: Based on the provided elemental composition, mass spectrometry data, and proton NMR data, the…
Q: None
A: Part 2: Explanation:Step 1: Understand Resonance Forms:Resonance forms are different ways to…
Q: Breathalyzers measure the alcohol (ethanol, C2H6O) content in an exhaled breath using a redox…
A: Given: C2H6O+Cr2O72−→C2H4O2+Cr3+Step 1: Write the…
Q: A chemist dissolves 852. mg of pure barium hydroxide in enough water to make up 160. mL of solution.…
A: Defining pH:pH tells about the strength of hydrogen ion concentration in a solution and its value is…
Q: Isotope #1 • Element Symbol 113 Nuclear Symbol: In 49 • Atomic Number • Mass Number • Protons…
A: Isotope #1Step 1: Based on the given nuclear symbol, the following information can be obtained:Step…
Q: 18- can you please help me with these 2 parts please? thank you!
A: (i) Reaction 1:Consider the first reaction in the table: ¼PbSO₄(s) + H₂O(l) → H₂O₂(l) + ¼PbS(s)This…
Q: What is the total number of carbon atoms in 6-ethyl-2-octyne?
A: The objective of the question is to determine the total number of carbon atoms in the compound…
Q: When the following molecular equation is balanced using the smallest possible integer coefficients,…
A: Please see the attached image for the solution. If there are queries or if the image is not loading,…
Q: Which of the following influences the magnitude of the ligand field splitting parameter, Ao? (i) The…
A: The charge of the metal ion affects the ligand field splitting parameter such that the higher the…
Q: Which is the more stable isomer out of the two, please explain the reasoning. Thank you!!! Urgent…
A:
Q: Compound A to B without DMF and POCl3 A B
A:
Q: If 50.0 mL of 1.00 x 10-5 M Fe3+ in a buffer were to be extracted with 5 equal 25.0 mL portions of…
A: The objective of the question is to find the pH of the buffer that would allow for the removal of…
Q: Nickel is immersed in 0.1M NaCl at pH = 1 and H2 pressure of 1 atm. Calculate the potential of the…
A: To calculate the potential of the cathodic half-reaction when nickel is immersed in a 0.1 M NaCl…
Q: When the following molecular equation is balanced using the smallest possible integer coefficients,…
A: The objective of the question is to balance the given chemical equation using the smallest possible…
Q: how to convert 20 ml of 20 % v\v to grams
A: To convert 20 mL of a 20% v/v (volume/volume) solution to grams, you'll first need to know the…
Q: AICI 3, CH2Cl2, Anhidro, N₂ atm. 0°C
A: Step 1: Step 2: Step 3: Step 4:
Q: What is the major product of the following reaction? Br Br CN CI 1 equiv NaCN Br CN Sr Sr & Ör I CN…
A: Step 1: Step 2: Step 3: Step 4:
Q: It is often possible to change a hydrate into an anhydrous compound by heating it to drive off the…
A: The objective of this question is to determine the formula of the hydrate of FeCO3. This can be…
Q: 4. Show how the following synthesis could be performed. (7 points) OH NH
A: The below shows how the compound hydroxylamine (NH2OH) can be synthesized. Here's one possible way…
Q: Which of the following structures are considered isomers of one another? Select all that apply.
A: Definition: An isomer is a term in chemistry that refers to molecules with the same chemical…
Q: How much heat is emitted when 4.45 g of water condenses at 25 degrees celsius? The heat of…
A: The objective of the question is to calculate the amount of heat emitted when a certain amount of…
Q: Please don't provide handwritten solution ....
A: The reaction of benzaldehyde with pentanone (also known as 2-pentanone) in the presence of sodium…
Q: Calculate and plot the Köhler curves for dry NaCl particles of diameters 40 nm and 100 nm…
A:
Q: For the following transformation: Me моя + H Me NaOMe MeOH 1. Draw all four possible products you…
A: Step 1: First, it is known that when sodium methoxide (NaOMe) and methanol (MeOH) react, there may…
Q: A IR Analysis for 2000-1500 would be what?
A: An IR analysis of the section between 2000-1500 shows us a spike at 80-90% of the transmission…
Q: Combustion reactions are exothermic. The heat of reaction for the combustion of octane, , is…
A: Step 1:
Q: Ice actually has negative caloric content. How much energy, in each of the following units, does…
A: The objective of the question is to calculate the amount of energy the body loses when it melts 67g…
Q: An electrochemical cell is constructed using 0.50 M NiSO4 and a solid nickel electrode in one half…
A: The objective of the question is to calculate the voltage of an electrochemical cell constructed…
Q: (H) = Na2CO3' H₂O
A:
Q: A marine biologist is preparing a deep-sea submersible for a dive. The sub stores breathing air…
A: The objective of this question is to calculate the pressure to which a certain volume of air must be…
Q: For the SECOND order reaction shown below, determine the half life of A when the initial…
A: Step 1:Step 2:
Q: For a given reaction associated with an electrochemical cell, K = 0.00134 and Q = 8.75. Use the…
A: The objective of the question is to determine the relationship between Eºcell and Ecell for a given…
Q: Calculate the equilibrium constant (Keg) for the ammonia synthesis reaction at 25 °C and show how…
A: The objective of the question is to calculate the equilibrium constant (Keg) for the ammonia…
Q: None
A: Approach: Buffer solutions contain a chemical equilibrium between an acid and its conjugate base.…
Q: Question 1 What is the molar concentration of a 2.52 m aqueous sugar molar mass, sucrose (sucrose,…
A: Step 1: Step 2: Step 3: Step 4:
Q: d) (25,3S)-3,4-dichloro-N-ethyl-2-methoxybutan-1-amide
A:
Q: 6. Complete the following reactions by providing the intermediate(s) and product(s). CH₂OH, H
A: 1. Formation of Hemiketal: The methanol attacks the carbonyl carbon of ketone followed by…
Q: Complete and balance the following redox reaction in basic solution. Be sure to include the proper…
A: ClO3−(aq)+C2O42−(aq)→ClO2(g)+CO2(g) Reduction half reaction (Cl goes from 5+ to 4+):…
Q: #22- hi can you please help with these 2 parts? thank you!
A:
Q: can you create an original syntheic scheme to the given target and write a paragraph that descibe…
A: Step 1: Step 2: Step 3: Step 4:
Q: Give a brief introduction on proton coupled electron transfer equilibria (PCET) explaining what…
A: Approach to solving the question:Proton-coupled electron switch commonly termed as (PCET) is a…
Q: You are trying to determine whether the following organic reaction can be done in a single synthesis…
A:
Is ether a good solvent for TLC? What would be expected to be seen on a TLC plate if 2,6-dimethylaniline was spotted on lane 1 and 2,6-dimethylnitrobenzene on lane 2 and developed in ether?
Unlock instant AI solutions
Tap the button
to generate a solution
Click the button to generate
a solution
- Chemistry 1)Arrange the following in order of increasing Rf in TLC? 3-pentanone, 3-pentanol,pentane.2) If all your Rfs were too large, what would you do to your solvent system to bring themdown?• What solvent(s) would you try next?3) What would happen if you spotted too much compound on your TLC plate?4) One of the compounds we are examining today has a chiral center.• Which one has a chiral center?• Identify it.Both melting points and TLC rely on differences in non covalent forces. Explain the role of these non-covalent interactions in the final answer obtained (melting point and Rf value).would hexene be a good eluent in a TLC experiment separating hex-1-ene and hexanol?
- 7. A student gets the following results after running a TLC plate of several over the counter analgesics. What should the student do to get better results? O Run the TLC for a longer time. O Co-spot the sample several times. Run a new TLC plate in a less polar solvent. O Run a new TLC in a more polar solvent mixture.What is a good TLC stain that can differentiate ethyl cinnamate and ethyl hydrocinnamate? What is a good TLC stain to identify dehydroabietylamine on a TLC plate?1. Which compound will have the largest Rf value on a TLC plate using 10% ethyl acetate/hexane as a developing solvent: 3- decanone or 3- decanol, toluene or benzoic acid, cyclohexane or cyclooctanone? Explain why?
- 5. Consider the chlorination (C2, hv) of optically active (2R,3R)-2-chloro-3-methylpentane. If the dichloro fraction is analyzed by gas liquid phase chromatography (GLPC), how many peaks may be seen? How many of the compounds in the dichloro fraction show optical activity?1,8-Cineole is a predominant terpene found in cranberries. The concentration of 1,8-cineole in cranberries was determined using gas chromatography. A 5.00 g sample of freeze-dried cranberry powder was added to 10.0 mL water to form a cranberry extract. The extract was filtered. A 1.00 mL aliquot was added to a 25 ml volumetric along with a known amount of internal standard (d-14 cymene) and diluted to volume with water. Standards were spiked with a fixed amount of d-14 cymene as internal standard. The following data was obtained: 1,8-Cineole (ug/mL); 1,8-Cineole (peak area); d-14 cymene (peak area) 10.0; 1260; 1880 15.0; 1865; 1850 20.0; 2520; 1855 50.0; 6280; 1865 Sample; 1976; 1840 What is the concentration of 1,8-cineole in ug per gram of cranberry? O 398 ug/g O 159 ug/g O 674 ug/g O 796 ug/g O 15.9 ug/gConsider the following errors that could be made when running TLC. Indicate what should be done to correct the error.a. A two-component mixture containing 1-octene and 1,4-dimethylbenzene gave only one spot with an Rf value of 0.95. The solvent used was acetone.b. A two-component mixture containing a dicarboxylic acid and tricarboxylic acid gave only one spot with an Rf value of 0.05. The solvent used was hexane.c. When a TLC plate was developed, the solvent front ran off the top of the plate.
- WILL HEXANE DISSOLVE fenethylline IN GC-MS?b. Answer the questions about the compounds below. جو عید بھید A OH B i) Which compound would have the highest Rf value by TLC? ii) Which compound would have the lowest Rf value by TLC? iii) Which compound would elute first in column chromatography? iv) Which compound would elute last in column chromatography?Consider a TLC plate loaded with the following compounds: Phenyl acetate, glycine, butyric acid, and cyclohexanol a) which spots would you expect to show up under the uv lamp b) suggest the best indicator to use for each compound c) which indicator would you use to visualize all the compounds at once