2. Consider the following TLC plate depictions below. In each depiction, 2 unknown samples are spotted side by side. For each depiction, (a) determine the error, if any, and (b) propose a modification

2. Consider the following TLC plate depictions below. In each depiction, 2 unknown samples are spotted side by side. For each depiction, (a) determine the error, if any, and (b) propose a modification

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

Chapter28: High-performance Liquid Chromatography

Section: Chapter Questions

Problem 28.17QAP: Mass spectrometry is an extremely versatile detection system for GC. However, interfacing an HPLC...

See similar textbooks

Related questions

Q: The inside of a car on a hot summer day is 55.3 C. A balloon with a volume, inside the car of 755 mL…

A: Given, T1 = 55.3℃ = (55.3 + 273) = 328.3 kelwin V1 = 755 ml T2 = 21.7℃ = (21.7…

Q: Which of the following straight-chain alkanes has the highest boiling point? A) C₃H₈ B) C₁₀H₂₂ C)…

Q: What is the written lewis structure for C2H4BrCl and how many valence electrons?

A: Lewis structure : It is the simplest representation of the molecule , by which we get the idea about…

Q: Provide the IUPAC name for the condensed structural formula shown here. CH3 CH3-CH-CH₂-CH₂-CH3 5- 4-…

Q: Question 18 of 25 Identify the equilibrium below that shows the two chair conformations of the…

Q: 4. Remove SO₂ 5. Remove O₂ 6. Remove SO₂

A: Equilibrium constant , k remains constant as long as temperature is kept constant.

Q: You have a prescription for 150g of 2% psoriasis w/w cream but only 8% cream in stock. How much of…

Q: 2NO(g)+O2(g)⇌2NO2(g) + Heat a) where will the reaction be shifted (right or left) if there is…

Q: What is the correct name for KNO₂? [Select] V anion. [Select] choose the correction cation and

A: Given in following question a compound KNO2 write this compound name and anion and cation.

Q: Briefly describe the activities that occur in each step of the drug discovery and development…

A: In the given question we need to describe in brief the activities that occur in each step of the…

Q: 2. Write the equation for the equilibrium constant (K) of the reaction 2CrO42(aq) + 2H+ (aq) ⇒…

A: equilibrium constant : a number that expresses the relationship between the amounts of products and…

Q: For the following unbalanced redox reaction: Au + O₂ + CN™ [Au(CN)₂] + H₂O

Q: Answer the questions below using the lewis structure for BrFs provided. F: [Select] hybridization on…

Q: 2.50 mol of a gas at 10 degrees Celsius occupies 55.5 L. Determine the pressure of the gas. - 106…

A: Given-> Mole of gas = 2.50 mole Temperature = 10°C = 10+273 = 283K Volume= 55.5 L

Q: Consider the voltaic cell with a standard cell potential of 2.89 V: Sr|Sr2+ (1.0 M)||H* (1.0 M)|H₂…

A: Given : Standard cell potential = 2.89 V According to standard cell notation left hand side…

Q: OH t-Bu corresponds to a Haworth projection of trans-1,3-di-tert-butylcyclohexane. t-Bu t-Bu t-Bu…

A: Cis -----> The substitutents on the two carbons are on the same face of the ring Trans ---->…

Q: what is the keq expression of the equation BaSO4 (s) ---> BaO (s) + SO3 (g)

A: The given reaction in equilibrium is: BaSO4 (s) ⇌ BaO (s) + SO3 (g)

Q: An unmeasurable change in enthalpy can be calculated using the Hess law. The following is the…

A: We have to calculate the enthalpy change for following Reaction using Hess law - 2 CH4(g) ⇒…

Q: Consider the redox equation. NO + H₂SnO3 → H₂O + Sn + HNO3 1. The atom that gained electron/s is…

Q: Chemistry Draw the organic and inorganic products for the following acid/base reaction. + X H 2…

Q: What are two benefits of modeling a bond using the ball and stick model? ( In Atomic Struture)

A: A ball and stick model is used to show the structure of a chemical molecule. There are advantage of…

Q: 100 90 80 70 60 50 40 30 20 10 0 MY 900 1350 450 1800 IR 2250 2700 3150 3600 4050

A: IR spectra helps us to analyze the functional group present in the Given compound.

Q: Which bond is the most polar? O carbon fine O carbon-silicon O carbon-nitrogen O carbon-oxygen

A: • The given bonds are- C-F , C-Si , C-N and C-O • We need to determine which given bond…

Q: Calculate ΔSϴ for the reduction of aluminum oxide by hydrogen gas: Al2O3(s) + 3H2(g) → 2Al(s) +…

Q: Chemistry Given the three-dimensional structure of the compound below determine the product of an E2…

A: Stereochemistry is branch of chemistry in which we deal with three dimensional arrangement of atoms…

Q: Initial rate data have been determined at a certain temperature for the gaseous reaction 2NO+2H2 →…

Q: Calculate AGᵒrxn in kJ for the following reaction at 550.0 K. CaCO3(s)→ CaO(s) + CO₂(g) -89040 O…

Q: When a polymer is formed by adding monomers, a molecule of __________________ is lost. These…

Q: Create diagram with ALL the functional group(s) found in DEET (Diethyltoluamide) circled and named.

Q: The U Oledu.co Maps Begin 30 F2 Aktiv Modu Modul Dr. Sc Ak x o Mail- b Succe G 17 out C Solve UO New…

Q: How long does it take for 75% of the purple dye to decay? Rate = 1.7 x 10 ³s-¹ [purple dye] S t =…

A: Given, Rate = 1.7 × 10-3 s-1[purple dye] t = ? s Let initial concentration of purple dye = [purple…

Q: 1. Shown below, a student spotted the three-component mixture onto a TLC plate and developed it…

A: a) Depending on the polarity the analytes will be separated on the TLC plate. More the polar…

Q: 2 C5H10 (1)+15 O₂ (g) → 10 CO₂ (g) + 10 H₂O(l) a. Calculate 4H of the reaction. b. Calculate 4S of…

A: Dear student , since you have posted multiple parts questions we will allow to solve only first…

Q: Consider the voltaic cell with a standard cell potential of 0.150 V. What is the cell potential of…

A: We have to predict the cell potential of given cell at 400 Kelvin temperature.

Q: Chemistry Which of the following complexes are chiral? Give a brief justification of your reasoning…

A: Chiral Complex : In chemistry, a molecule or ion is called…

Q: 11) OH Match this condensed formula, CH,(CH₂) CO(CH₂)₂CH₂, with the correct skeletal drawing. A) I…

Q: pahol 90) Chemical compounds that lighten natural known as a) Color removers b) Hair Lighteners c)…

A: 90) Chemical compounds that lighten natural known as a) Color removers b) Hair Lighteners c)…

Q: For the reaction below, identify the acid, the base, the conjugate acid, and the conjugate base.…

Q: 5. Identify the different bonds between glucose molecules in this picture (1)

Q: What is the wavelength in nm of a photon emitted from an H atom if an electron transfers from n=6 to…

A: Given RH= Rydberg constant = 1.097 x 10 -2 nm-1 nf = 3 ni = 6

Q: The volume of a NaNO3 solution in 1000 g water at 25 °C and 1 atm can be described using the…

Q: If 1.00 mol of N₂ has a volume of 47.0 L under the reaction conditions, how many liters of gas can…

A: I have given a detailed solution to the question as follows:

Q: (2) Show that °H) =C, +V( ^P ӘТ ), V

Q: 1. Shown below, a student spotted the three-component mixture onto a TLC plate and developed it…

A: To determine the order in which the given molecules present in the analytical mixture will appear on…

Q: CH3OH/H Na NaCN/H,O 2 H₂O LIAIH4 1. CH₂MgBr 2. H₂O H₂O/H30* CH3ONa CH3OH_ NH3

A: Acidic condition -----> Nucleophile attacks on the greater substituted site of epoxide Basic…

Q: A catalyst is a substance that increases the rate of reaction but does not participate in the…

A: Given statement: A catalyst is a substance that increases the rate of reaction but does not…

Q: MOLECULE Lewis Dot Diagram Structural Diagram Name of VSEPR Shape Polar/non-polar + Reasoning CIO3¹-

Q: Q37

A: Intermolecular forces of attraction which works between the two molecules/atoms.

Q: Descriptors that apply to a solution of NaNO2

A: We have to tell about the solution of a NaNO2.

Q: Hydrogen gas and iodine react to form hydrogen iodide via the reaction H2(g)+I2(g)⇌2HI(g)…

Question

3a. 3b

2. Consider the following TLC plate depictions below. In each depiction, 2 unknown samples are
spotted side by side. For each depiction, (a) determine the error, if any, and (b) propose a
modification
Compound 1
A
B
A B
Plate I
Plate II
A
B
Plate III
Compound 2

Expert Solution

This question has been solved!

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

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Errors

VIEW

Modification

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 3 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Quality Assurance and Calibration Methods

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

How can the selectivity factor be manipulated in (a) GC and (b) LC?
show the instrumentation of HPLC providing a schematical representation ?
only assign peaks from 1500 to 2000 cm-1
In TLC, the property used to identity compound is... O Spotting O Visualization Retention Factor O % Purity
If the peak width w of both Peak 1 and Peak 2 fro eon 1g is 0.5 minutes, what is the resolution factor between the two peaks? 1.13 Selectivity is Peak 1 (6.0 min, Peak 2 w=0.5 (6.8 min, w=0.5 25 min) min) 20 15 Hold up peak (1.8 min) 10 0. 0. 4. 8. time (minutes) 2. 5. Signal
Different from GCMS, why is an interface needed when coupling HPLC with MS?
The ppm concentration of Pb2+ in a blood sample were measured with Spectrophotometry. 5.00 mL of a blood sample were taken and this sample gave a signal of 0.301 a.u.. Another 5.00 mL of a blood sample were mixed with 0.50 mL og 1.75 ppm Pb2+. Then, this mixture was diluted to 25.00 mL and this diluted mixture gave a signal of 0.406 a.u.. What is the ppm concentration of a blood sample?
Pls make sure it's 10000% correct and explain pls and thank you
what chromatography seperation how is tlc part of it
List the desirable characteristics of HPLC detectors.
uestion 5 of 24 Identify the components in the single-beam spectrophotometer schematic. Then, match the spectrophotometer component with its description. Each component will be used once when labeling the diagram and once when matching to the description. P Po 0. Answer Bank detector light source monochromator sample cuvet It holds the sample and has a defined pathlength. It provides electromagnetic radiation in the ultraviolet (UV), visible, or infrared (IR) region of the spectrum. It is typically a grating, prism, or filter that selects a narrow wavelength band of radiation and passes it to the sample. It is typically a photomultiplier tube that generates an electric signal when struck by photons.
3. The lead in a swab sample, lead standards, together with a blank were made up in 5.00 mL volumetric flasks using 0.2 % HNO3. 20 μL aliquots of these solutions were injected into the spectrophotometer and the absorbance measured at 217 nm. The following results were obtained. lead / ppb Absorbance 0 0.0591 10.00 0.0858 50.00 0.1926 100.0 0.3260 150.0 0.4594 200.0 0.5929 Swab sample 0.3700 (a) Determine the amount of lead in the swab sample in μg.