1. Calculate: Retention factor (k), Separation factor (α), and Resolution (R) for slide 29. Comment on how these may be adjusted to give optimum values. GC of a mixture containing benzene, methyltoluene and chlorotolueneCH3CH3.CICalculate:Retentionfactor (k),Separationfactor (a), andResolution (R)TIC3.04.05.06.07.08.08.9min

Retention factor in GC =(tr-t0)/t0 is ratio of analyte amount in stationary phase to mobile phase.…

Answered: Calculate: Retention factor (k),…

Calculate: Retention factor (k), Separation factor (α), and Resolution (R) for slide 29. Comment on how these may be adjusted to give optimum values.

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter34: Miscellaneous Separation Methods

Section: Chapter Questions

Problem 34.2QAP

See similar textbooks

Related questions

Q: Calculate the new pH after adding 0.050 mol of HBr to 1.0 L of buffer solution containing 0.200 mol…

A: When HBr , which is an acid is added to buffer solution , it will react with conjugate base CH3COOK…

Q: A geologist finds an old rock and wants to determine its age using rubidium-strontium dating. This…

A: Given: Half-life of isotope = 4.75 × 1010 years. And the ratio of 87Sr to 87Rb = 0.15

Q: Givem- Cr Hyt B02 2 C02t2H20 DH= -3ookcal Ishatis the AH for bleos UTeartion s 4C02 t H 20 y 2to 2c2…

Q: Show ALL work. Remember to follow significant digit rules and show proper format in all answers.…

Q: 1. Water evaporates at room temperature because A) the standard free energy change is positive B)…

A: Evaporation - The process of conversion of liquid to vapors is called evaporation. Evaporation of…

Q: given 250. ml. of a 0.80 M diethylamine (C2H5)2NH2Br solution. Diethylamine-3 is a weak base with K,…

A: Given, Volume of Base = 250. ml = 0.250 L Concentration of Base = 0.80 M Mole of Base =0.80 ×…

Q: Balance redox reactions in acidic solution. Balance the reaction between Al and Pb02 to form Al3+…

A: The reaction given is, => Al + PbO2 → Al3+ + Pb2+

Q: Calculate DG in kJ for this reaction at 25C using information from Appendix Il CO2(g) + CCI4(g)…

A: DG is called as Gibbs free energy change for a reaction. It is Calculated using formula DG = DG° +…

Q: Calculate ASsurr for the following reaction at 25 °C: N2(g) 2 N(g) AH°† (kJ/mol) S° (J/mol ·K) N2(g)…

A: The reaction given is, => N2 (g) ⇔ 2 N (g)

Q: y grams of CaCl, can

Q: 3. Indicate the Aromatic and Antl-aromatic compounds, With an Explanation? NH NN

A: The compounds given are,

Q: The table below shows the pH of three fluids. Fluid pH Digestive fluid Blood 7.3 Cell interior 6.8…

A: The data given is,

Q: 6. What happens to the density of a gas as its V decreases at constant P and T? C. stays the same D.…

Q: 7) How do you separate diffusion current (ia) from kinetic current (i) in a polarographic…

A: The answer is given below

Q: Calculate the pH of a 0.40 M solution of HCIO given that Ka (HCIO) = 2.9x108 Give your answer to 2…

A: PH of HClO can be calculated as follows

Q: Wine goes bad soon after opening because the ethanol (CH3CH2OH) in it reacts with oxygen gas (O2)…

Q: How long must a current of 2.15 A be applied to 35.0 mL of a 0.247 M AICI3 solution in order to…

Q: A chemist performs a gravimetric analysis. The chemist combines 1.00L of 2.00MAgNO3(aq) with 1.00L…

Q: pH

Q: 5. Which is true about the function 5sin(5x) and the operator d?/dx2? a. The function 5sin(5x) is an…

A: Note: As per our company guideline we can answer only one question. Kindly repost the question…

Q: A mixture of three gasses (H2, Br2 and Cl2) has a total pressure of 58.6 atm. The pressure of Br2 is…

A: given :- pressure of Br2 = 9.1 atm pressure of Cl2 = 165.3 in Hg total pressure = 58.6 atm…

Q: What is the most probable speed of a gas with a molecular weight of 20.0 amu at 50.0 °C? A) 518 m/s…

Q: -5. Acetic acid's Ka is 1.8 x 10¯5. What can you conclude about the free energy of the dissociation…

Q: QUESTION 32 A food item that contains 28 g of protein, 20. g of fat, and 22 g of carbohydrate.…

A: 1.) To calculate % kcal energy by Protein , we would first need to calculate energy produced by all…

Q: ecollege.com/course.html?courseld=17238291&OpenVellumHMAC=b5d99ca5abc343615f7c3fe5e11934a4#10001…

Q: How many moles of aluminum are required to completely react with 107 mL of 6.00 M H₂SO₄ according

A: Given : Volume of H2SO4 solution = 107 ml = 0.107 L Molar concentration of H2SO4 solution = 6 M

Q: What ratio of NaCN to HCN is needed to prepare a pH 9.40 buffer? (Ka of HCN is 4.9 × 10⁻¹⁰)

Q: 2. Circle and name all functional group(s) for each molecule H. CH3 C= a. H. H3C (CH2)4CH3 .C. H;C…

A: A group of atoms responsible for the characteristics reaction of a particular compound is called…

Q: Describe how D30 is made out of a thermosetting polymer?

A: First we discuss about thermosetting polymer - thermosetting polymer are those polymer which has…

Q: What is the balanced equation for the galvanic cell reaction expressed using the following shorthand…

A: The cell given is Mg (s) | Mg2+ (aq) || Cl2 (g) | Cl– (aq) | C (s).

Q: A 15.4 mL aliquot of hypochlorous acid that has a concentration of 0.16 M will be titrated with…

A: Given: The titration of hypochlorous acid with NaOH. And the titration is till the…

Q: 10. A 29 kg Chesapeake Bay retriever presents with cluster seizures. The doctor instructs you to…

A: To calculate mgs , we would use weight of patient and given dose amount . After calculating mgs ,…

Q: 3 Co(s) + 2 NO 3- (aq) + 8 H+ (aq) = 3 Co 2+ (aq) + 2 NO (g) + 4 H2O (l) What would be the pH of…

A: Given cell reaction: 3Co(s)+2NO3-(aq)+8H+→3Co+2(aq)+2NO(g)+4H2O(l)

Q: Question 9 In a titration of a weak acid with a strong base, what is the pH of the solution at the…

A: Here, we have to find the pH of a solution at the equivalence point in a titration of a weak acid…

Q: A sample of gas at 52°C and 1.75 atm occupie a volume of 2.38 L. What volume would thi gas occupy at…

A: Given, Temperature, T1 = 52 oC = 325 K Pressure, P1 = 1.75 atm Volume, V1 = 2.38 L Temperature, T2…

Q: Question 6. Provide a mechanism for the following transformation. NaBH4 -Me Br. Me

A: In the given reaction reduction is take place. There are two steps in mechanism.

Q: magnesium reacts with chlorine, th

Q: Consider a drop of Mercury. A chemist obtained its mass from which she showed that the drop…

Q: Contrast general and partial equilibrium analysis. What is the main advantage of each? Plz do fast

A: The answer is given below

Q: What is the pOH of a solution prepared by diluting 128.9 mL of 1.476 M HNO, (ka>>1) to a total…

A: Given that - Volume of stock HNO3 Solution =128.9 mL Molarity of stock HNO3 Solution = 1.476 M…

Q: Problem 78 IR Spectrum (liquid film) 800 1600 2000 V (cm1) 4000 3000 1200 100 Mass Spectrum UV…

A: Molecular formula : C10H14 (DBE =10- (14/2) + 1 = 11-7 = 4. Benzene ring is present.

Q: Draw the skeletal (line-bond) structure for (5S), (3Z)-5-chlorohex-3-en-2-one. Use a dash or wedge…

A: Assign priorities to the groups attached to the chiral centre as per CIP rule(Cahn-Ingold-Prelog) If…

Q: 54. For the reaction shown here, Ke 255 at 1000 K. %3D CO(g) + Cl2(g) COCI2(8) If a reaction mixture…

A: Let us discuss the question.

Q: What is the standard potential (E°) for the reaction below? Use the standard potentials in the Data…

Q: What would have happened in the titration if the phenolphthalein or thymolphthalein was not added to…

A: 1) To explain: The effect of not adding the indicator phenolphthalein or thymolphthalein to the…

Q: The electromotive force f the half cells at 25 čs Ag / Ag Ag/ Ag Br 0-8V -0.071V calculate:…

A: Given: Ag/Ag+ = -0.8 V, Ag/AgBr = -0.071 V Efficiency constant = 0.9 Two half reactions for the…

Q: for each pair, state and explain which is more basic: (t) (r)

A: Since you have posted multiple questions with multiple sub-parts, we will solve the first three…

Q: Given- C2 Hyt B02 > 2 C02t2H2o 52002+2H20 DH= -30ok col shat is the AH for bleous UTeaction ? 4C02 t…

Q: An archaeologist finds some ancient jewelry made from bone. The jewelry has a carbon mass of 482 g…

A: Nuclear decay follows 1st order reaction. Given the half-life of C-14, t1/2 = 5730 year…

Q: Refer to the following equilibrium reaction: CaCO3(s) CaO(s) + CO2(g) How would the equilibrium…

A: Equilibrium shift according to le chatelier principal. Equilibrium shift in that direction where…

Question

1. Calculate: Retention factor (k), Separation factor (α), and Resolution (R) for slide 29. Comment on how these may be adjusted to give optimum values.

GC of a mixture containing benzene, methyl
toluene and chlorotoluene
CH3
CH3
.CI
Calculate:
Retention
factor (k),
Separation
factor (a), and
Resolution (R)
TIC
3.0
4.0
5.0
6.0
7.0
8.0
8.9
min

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

VIEW

Step 2

VIEW

Step by step

Solved in 2 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

Internal standard. A mixture containing 12.8 mM analyte (X) and 44.4 mM standard (S) gave chromatographic peak areas of 306 for X and 511 for S. A second solution containing an unknown quantity of X plus 55.5 mM S had peak areas of 251 for X and 563 for S. Find [X] in the second solution.
The following is an HPLC separation of deuterated benzenes on a C18 column that 440 cm long. The mobile phase was 30% acetonitrile:70% water at 30oC. What is the mobile phase velocity? Find the retention factor k' for C6D6. Find the plate number and plate height for C6D6.. Assuming that the peak widths for C6H5D and C6H6 are the same as that of C6D6., find the resolution for C6H5D and C6H6. Retention times for C6H5D and C6H6 are 193.3 and 194.3 respectively, Find the relative retention time and unadjusted relative retention time between C6H5D and C6H6.
Arrange in INCREASING Rf if the mixture underwent paper chromatography with the same solvent system. Explain how you get the answer I. 2-chloropentaneII. pentanoic acidIII. cyclopentaneIV. pentanal a. II = IV < III < I b.II < IV < I < III c.I < II < III < IV d.III < I < IV < II
(ii) What is the unadjusted relative retention for components A and B?
1a) Hexane, CH3(CH2)4CH3, is found to have a long retention time when separated from a mixture. A column with a C18 (18-carbon chain) stationary phase and a methanol-water modal phase is used for the separation. Explain why hexane has a long retention time. 1b)You wish to chromatographically seperate a mixtureof the follwing compunds. Which of the two compounds will be most difficult to seperatate from one another? Why?
In a chromatographic separation of two components A and B. Component A has a higher Rf value than component B. This implies that: A. Component B has a higher affinity than A for the mobile phaseB. component B elutes first in the columnC. A has a higher affinity than B for the mobile phaseD. Component A has a higher affinity than B for the stationary phase.
IN GC, What effect does changing from a temperature ramp to an isothermal temperature program have on resolution of peaks at the beginning of the chromatogram versus the end of the chromatogram. Consider molecular weight and boiling point of the analytes.
a- Separation is essential in chemical analysis especially when we are dealing with complexmixture of chemical species. Name 1 separation technique based on basis of operation asbelow. Basis of operation Techniquei) Sizeii) Mass and densityiii) Change in physical state
An HPLC method was developed for the separation and determination of ibuprofen in blood samples. A 3.00 mL blood sample dissolved in 70.00 mL solvent was prepared and 10.0 mL was injected into the HPLC. Standard ibuprofen solutions were also run.Calculate the ibuprofen present in the 3.00 mL blood sample The following data were obtained. Table po itoo: Ibuprofen concentration, mg/ml0.50 1.0 2.0 3.0 Blood sample Peak area (Right column)5.29.617.419.911.4
Benzene and toluene, when analysed isothermally on a 25 m × 0.25 mm i.d. capillary GC column, were found to have retention times of 8.56 and 8.67 min, respectively. An unretained solvent passed through the column in 4.10 min in the same analysis. The peak widths at half height for benzene and toluene were 4.2 and 4.3 seconds, respectively. Calculate: a) The capacity factor for each of these compounds b) The selectivity factor for the separation c) The average number of plates for the column d) The resolution between benzene and toluene. Are they completely separated under these conditions? e) What is the plate height (H) for this column? What can you say about the efficiency of this column? Explain f) The dimensions of a column with the same phase ratio required to obtain a resolution of 1.5 under otherwise identical conditions
What is the role of stationary phase and mobile phase in Chromatography? Please shortly write at your own words. (5-6 lines maximum ).
(b) For column 1(i) What are the unadjusted retention times for components A and B?