Answered: their eluting power (decreasing order).…

their eluting power (decreasing order). In TLC experiment, arrange the following solvents (mobile phases) according to Dichloromethane Ethyl alcohol V 130 °C A Acetone V Hexane

Principles of Instrumental Analysis

7th Edition

ISBN:9781305577213

Author:Douglas A. Skoog, F. James Holler, Stanley R. Crouch

Publisher:Douglas A. Skoog, F. James Holler, Stanley R. Crouch

Chapter33: Automated Methods Of Analysis

Section: Chapter Questions

Problem 33.8QAP

See similar textbooks

Related questions

Q: 7. What will be the final temp of the system when 100g ice at 273 K is put in 500 g of water at…

Q: The normal boiling point of a certain liquid X is 128.60 °C, but when 37.5 g of iron (III) chloride…

A: The colligative properties are those properties of solutions that depend on the number of solute…

Q: # 10.B. Plastics are Polymers made up of organic monomers. A monomer means a single unit. A polymer…

A: Polymers are large molecules composed of repeating structural units called monomers. These molecules…

Q: 2. When nitriles are hydrolyzed in strong acid, they produce two products sequentially. Provide the…

A: The acid-catalyzed hydrolysis of nitriles first converts into amids and then subsequent hydrolysis…

Q: A. Br HBr (excess) پنی من من بنے Br B. Br Br Br Br + Br Br D. Br Br

A: Addition reaction of HBr to an alkyne

Q: What is the pH of a solution resulting from adding water to 1.00×10-4 mol of HCIO4 to yield a 1.00 L…

A: Check the formula to calculate the pH and use it to calculate the pH of the given solution.

Q: The K₂ of a weak acid is 3.83 × 10-4 at 25.0°C. What is the % ionization of this weak acid in a…

Q: Draw the arrow-pushing mechanism of the following reaction: NaOCH3 O

A: Ketone, Ester and Sodium Ethoxide as reactants. Diketone as product We have to draw the mechanism of…

Q: 1. A chemist wants to determine empirically the enthalpy change for the following reaction. Mg(s) +…

Q: suppose isothermally sampi gas is expanded and reversibly from 10 to 20 L at 298K. How much work is…

A: n= 1molT=298 KV1= 10 LV2= 20 LR=8.314 J/K-mol

Q: Draw a structural formula for the major organic product of the reaction shown below. C(CH3)3 CH₂ +…

A: Organic transformation

Q: QUESTION 2 What is the pH of a 0.074 M aqueous solution of NaOH? OA. 15.13 B. 1.13 C.-1.13 D. 12.87

A: Concentration of NaOH aqueous solution = 0.074 M Determine pH of this solution? NaOH is strong base…

Q: Give only typing answer with explanation and conclusion to all parts The following overall reaction…

A: Spontaneity of the reaction is to be tested.

Q: Draw the Lewis structure for the hydrogen sulfide (H₂S) molecule.

Q: 62. What starting material will generate the indicated product with the given reaction sequence? 1.…

A: As per the norms, only the first question can be answered. For other answers please resubmit the…

Q: A dye molecule can exist in one of three forms, shown below. Which of the three has the largest Amax…

A: The wavelength of the absorbed light by an organic molecule depends on the extent of conjugation…

Q: The structural formula of an organic compound is shown below. H3C-CH=CH- OH What mass of chlorine…

Q: why are oxygen,nitrogen,hydrogen,and chlorine IR inactive?

A: Infrared spectroscopy relies on the interaction of molecules with infrared light, causing the…

Q: A sealed reaction vessel with a movable piston contains CO₂(g) in equilibrium with H₂O(1) at 25 °C,…

A: Temperature = 25 0CThe reaction of gaseous carbon dioxide in water is carried out in a movable…

Q: 10. To extract benzoic acid from a mixture of aniline, and methoxybenzene, we follow the steps,…

A: This is ternary mixture and in which benzoic acid, Aniline and methoxy benzene. Benzoic acid…

Q: 87 What is the major organic product of the following Claisen Condensation reaction? :O: 1. Na…

A: The given reaction is Claisen ester condensation reaction. In this reaction carbon–carbon bond…

Q: _A) The compound shown below undergoes a retro (reverse) aldol reaction under acidic condition(cat…

A: Retro-Aldol reaction is a type of reaction in which carbon-carbon bond is broken to form two…

Q: QUESTION 3 A solution is made from 0.329 M of a weak base. What is the pOH if the Kb for this base…

A: To calculate the pOH of a weak base, we need to use the base dissociation constant (Kb) and the…

Q: Predict the product of the conjugate addition and then complete the mechanism of the reaction.

A: In 1,4-conjugate addition, the nucleophile attacks the soft centre that is the carbon-carbon double…

Q: The activation energy Ea for a particular reaction is 42.2 kJ/mol. How much faster is the reaction…

Q: 4) What is the product of the following reaction? D) ОН -OH Н30 -Mg-Br -ОН OH да

A: Grignard reagent reacts with Carbonyl compound followed by hydrolysis to form alcohol.

Q: 45.5 mL sample of a 0.329 M aqueous acetic acid solution is titrated with a 0.261 M aqueous barium…

A: Given,Molarity of acetic acid ( CH3COOH ) = 0.329 MVolume of CH3COOH = 45.5 mLMolarity of barium…

Q: Some chemical compounds are listed in the first column of the table below. Each compound is soluble…

A: An ionic compound is a compound where cations and anions are held together by strong electrostatic…

Q: Which of the reagents would oxidize Fe to Fe²+, but not Ag to Agt? Co²+ Br₂ Ca²+ Ca Br Co Which of…

A: In the given question, we need to determine which reagent will oxidize Fe to Fe2+ but not Ag to Ag+…

Q: Calcium has 20 electrons in total. The ionization energy for the first 18 have been graphed below.…

A: Given:Graph of ionization energy of first 18 electrons of CalciumTo determine:Labels for empty…

Q: H. H sk H H Na+ H H C:Nat H a) Would you expect the reaction shown above to occur as written? b)…

A: NaNH2 is a strong electrolyte that fully dissociates as:

Q: 20. Which of the following is nylon 6,6? A th your At At

Q: Several different methods can reduce the carbonyl group of an aldehyde or ketone. a) Select all…

A: Answer :---- (a)

Q: Ammonium cation NH 4 dissociate in diluted aqueous solution according to the scheme: NH4+H20→→→→→→→→…

A: (a) In the exothermic process heat is released and in the endothermic heat is absorbed. Here, the…

Q: QUESTION 12 Which of the following statements is TRUE? A. The end point is the same as the…

Q: 1. Give a systematic name for each of the following structures. Indicate stereochemistry if…

Q: For numbers 16-17: Calculate the following values at T = 400 K for argon that behaves as a Berthelot…

Q: 37. Which structures are aromatic? (A) I and III (C) I, III, and IV II 오 IV (B) I and IV (D) I, II,…

A: The cyclic organic compounds can be aromatic, non-aromatic, and anti-aromatic. There are certain…

Q: Nitric oxide gas (NO) reacts with chlorine gas according to the equation. NO + 1/2 Cl₂ → NOCI The…

Q: QUESTION 22 The pOH of a solution is 5.50 at 25 °C. What is its hydronium ion concentration? O-3.2 x…

A: Given,pOH of a solution = 5.50 at 25 0C

Q: Which of the following is NOT included in the mechanism for the following reaction? AICI,…

A: Benzene ring is electron rich so it can attack to the electrophile. The given reaction is known as…

Q: Prove the equation below to make the relationship True : (@U/OV) = (@U/OP)r= (H/V)r = 0

A: these three can be solved by thermodynamic equation of sate and normal thermodynamic equations for…

Q: Question 3: Calculate the wavelength, in nm, of a particle that has a velocity of 160 cm/s and a…

A: The mass of the particle The velocity of the particle We have to calculate the wavelength of the…

Q: Boric acid, H3BO3, is commonly used in eyewash solutions in chemistry laboratories to neutralize…

A: To calculate the number of moles of NaOH used in the reaction, we can use the given concentration…

Q: 24) Which one of the given compounds is consistent with the following IR spectrum? MAN

A: Question 24: To identify that the IR spectrum is consistent with which of the given…

Q: 17. Consider a galvanic cell that utilizes the following reaction (unbalanced): (AuC14) -(aq) +…

A: Galvanic cells, also known as voltaic cells, are fascinating electrochemical devices that convert…

Q: H3CH₂C (iv) CH₂CH3 CO, HCI AICI3/CUCI

Q: O O ONa oçã Ja ? Major Organic Product

Q: Phase-I sepera 1 11 Dipote-[ lon-Di Dispersi Hydroge N-H₂ O Surfacet CONESA adnesio Viscosit…

A: N2 (g) + 3H2 (g) ----> 2NH3 (g) Kc = 1.2

Q: 9. For the following two molecules show: a) Molecular geometry b) Electron domain geometry c) Bond…

A: Molecular geometry Electron domaim geometry Bond angles Existence of bond dipole and dipole moment

Question

ling point at 130 °C
V
their eluting power (decreasing order).
In TLC experiment, arrange the following solvents (mobile phases) according to
Dichloromethane
Ethyl alcohol
A
Acetone
Method
>
Hexane

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1: Introduce the given problem

VIEW

Step 2: Explain the relation of eluting power and nature of solvents (mobile phases)

VIEW

Solution

VIEW

Step by step

Solved in 3 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.

Similar questions

Pls solve this question correctly in 5 min i will give u like for sure What evidence supports or refutes that during an experiment, purified extract is pure caffeine?
g) h) i) j) H₂C Ph OCH3 HO OCH₂Ph OSI(CH₂)3 Br PPha + 2 1) "Buli /THF / rt/1.5 h 2) OsO4/ NalO4 acetone /ether LOCH3 -Si(CH3)3 CH3 /nt/1 h CH₂Cl₂-78°C / 15 min PPn, /1₂ (1 eq) imidazoie / THE 0°C - rt
1%9V lli. O 1 M A;Yv 1. IF found impurity the melting point - Increase - Not effect - Decrease 2. benzoic acid can be purified by sublimation at . . pressure - high - low - normal 3. . . separates liquids with closer boiling points. * - fractional distillation - Extraction - Simple distillation with increasing 4. melting points molecular weight."
C B) C) D) E) (C6H5)3P NH₂ Zn(Hg) HCI ۵۰۰ NaOH heat DMSO 1. Excess CH31 2. Ag₂O, H₂O 3. heat -O 53% 35°F Cloudy 12
(4) Below are depictions of a student's TLC plates in which fractions 1 - 10 from their column are spotted. Lane 1 2 3 4 5 67 8 9 10 (a) Which fractions contain pure fluorenone? Which contain pure ferrocene? (b) Which lanes, if any, represent mixed fractions? (c) Would the student incorporate lanes 6 and 7 into an Erlenmeyer flask of a combined fraction? Explain with 10 words or less.
T TrineOniline | Trine U in CH---214-01-5P-202 x E Problem Set 8.pdf 0 Mail - Outwater, Peri: X C Solvent Free Reduct x A New teb A Adobe Scan Apr 26. O File | CUsers/paris/Downloads/Problem%20Set%208.pdf 1 O A Page view A* Read aloud V Draw E Highlight v O Erase of 1 O Add text 1. In the Diels-Alder reaction below, six isomeric products A-F are depicted. However, only one of these is the major product formed. CM: OMe OMe CN .CN .CN OMe "Ma Me Ma CN OMs OMe OMe Me Me Me GN 'CN ON D E a) In the boxes above, label the diene and dienophile. b) Identify the two isomers that are unreasonable based on the concerted mechanism of the Diels-Alder reaction. (Hint: look at the geometry of the dienophile) Isomers: and c) Label the four remaining isomers as either endo or exo products. Endo: and Exo: and d) Of the two endo products, which would you predict to be favored based on regio- chemistry electronics? Explain your choice using resonance structures for full credit. Major Product: 41"F 2:05 PM…
A student was asked to identify the best recrystallization solvent for compound X. Below is the experimental data obtained. Which is the best solvent of choice? Observations: vs= very soluble; so=soluble; ss= slightly soluble; in = insoluble Test tube 1 2 3 Solvent A B C Hot water bath vs vs ss Room temperature so ss in Ice water bath so in in Group of answer choices None B C A
a. Calculate the base saturation using the following given miliequivalent weights obtained from a 25g soil sample (a. Ca++= 2.23 m.e.; b. Mg++=1.32 m.e.; c. Na+= 1.98 m.e.; d. K+= 1.87 m.e.; e. H+= 1.27 m.e.; f. Al+++= 0.11 m.e.; g. NH4+= 2.3 m.e.; h. NO3-= 1.5 m.e. b. Calculate the CEC (m.e./100g soil) using the following given miliequivalent weights obtained from a 25g soil sample (a. Ca++= 2.23 m.e; b. Mg++=1.32 m.e.; c. Na+= 1.98 m.e.; d. K+= 1.87 m.e.; e. H+= 1.27 m.e.; f. Al+++= 0.11 m.e.; g. NH4+= 2.3 m.e.; h. NO3-= 1.5 m.e.
Why acetone has les retention time and toluene has more. discus about polarity of 3 samples and interaction with stationary phase
calculate the following for each sample gas chromatograph. a) retention time for each peak (label peaks) b) area of each peak c) %composition Sample GC of starting material for distillation of solution that is 40% ethyl acetate and 60% propyl acetate.
Why does the %T on the spectrophotmete keep going up and down? It won't give an exact measurement.
Temperature Wavelength A 0.64 g sample containing KCI ( mw = 74.6 ) is dissolved in 50mL of water and titrated to the Ag2CrO4 end point, requiring 26.2 mL of 0.15 * ? M AGNO3 .The %w/w KCI in the sample is 4. %3D Non of these 58.6% 45.8% 25.2% Which of the following alcohols would be most soluble in * ?water Heptanol O Hexanol Ethanol O Pentanol If 20mL of a 0.40M Mg(OH)2 solution is used to titrate 25mL of HCI