Explain a layer ofstationary phase thick on the inner wall

Assignment Help Chemistry
Reference no: EM13240709

Consider the peaks for pentafluorobenzene (12.98min) and benzene(13.20min) in the chromatogram shown above. The elution timefor the unretained solute is 1.06 minutes. The open tubularcolumn is 30.0m in length and 0.530mm in diameter, with a layer ofstationary phase 3.0um thick on the inner wall.

A) Find the adjusted retention times and capacity factors for bothcompounds.

B) Find the relative retention, ?.

C) Find the separation factor, ?.

D) Measuring w1/2 on the chromatogram (0.13min forpentafluorobenzene and 0.15min for benzene), find the number ofplates, N1 and N2, and the plate height forthese two compounds.

E) Measuring at the width, w, at the baseline on the chromatogram(0.28min for pentafluorobenzene and 0.30min for benzene), find thenumber of plates for these two compounds.

F) Use your answer to part E to find the resolution between the twopeaks.

G) Using the number of plates N = ?N1N2with values from part E and the observed separ

Reference no: EM13240709

Questions Cloud

To test the hypothesis that students who finish an exam : To test the hypothesis that students who finish an exam first get better grades, Professor Hardtack kept track of the order in which papers were handed in.
In dallas some fire trucks were painted yellow instead of : In Dallas some fire trucks were painted yellow (instead of red) to heighten their visibility. During a test period, the fleet of red fire trucks made 143, 348 runs and had 20 accidents, while the fleet of yellow firetrucks made 135,035 runs and had 4..
What is the acceleration of the elevator : A 10 kg dog is standing on scale in an accelerating elevator. If the scale reads 5 kg, what is the acceleration of the elevator
Self-portraits-primary reason for painting a self-portrait : Self-Portraits. Journal. The Renaissance artists Titian, Rembrandt, and Durer have each painted self-portraits. Imagine yourself as one of these artists (or another artist of your choice that has painted a self-portrait) and write a journal expressin..
Explain a layer ofstationary phase thick on the inner wall : Consider the peaks for pentafluorobenzene (12.98min) and benzene(13.20min) in the chromatogram shown above. The elution timefor the unretained solute is 1.06 minutes. The open tubularcolumn is 30.0m in length and 0.530mm in diameter, with a layer ..
Interpret the following spss computer output : Interpret the following SPSS computer output for the chi-square test. Variable COMMUTE is “How did you get to work last week?” Variable GENDER is “Are you male or female?
Find the charge of each capacitor : A parallel combination of a 1.09-?F capacitor and a 2.81-?F one is connected in series to a 4.33-?F capacitor. This three-capacitor combination is connected to a 15.3-V battery
Impact of population variables on health services demand : Impact of population variables on health services demand and provision. Arab Studies Quarterly, 29(1): 61-70. Retrieved 13th July 2013. Available from ProQuest
Explain how many disintegrations per second does undergo : If you purchased 1.11 muCi of sulfur-35, how many disintegrations per second does the sample undergo when it is brand new

Reviews

Write a Review

Chemistry Questions & Answers

  How many moles of air are contained in the tire

The tire is filled with dry air at sea level and a temperature of 60 degree F to 32 lb/square inch.standard sea level pressure is 101325 Pa at 0 degree C (STP).

  What sequence of steps represents the best synthesis

What sequence of steps represents the best synthesis of 4-heptanol (CH3CH2CH2)2CHOH?

  How many moles of koh were in the sample

Using the following reaction: OH- + HC2H3O2 ---> H2O + C2H3O2- a 75.0 mL sample of potassium hydroxide, KOH, of unknown concentration is titrated with 42.5 mL of 0.575 M acetic acid.

  Determine how many grams of nacl should be dissolved

Determine how many grams of NaCl should be dissolved in a liter of H 2 O to produce an isotonic solution?

  State affect the test for the presence of ammonium

Instead of 6 M NaOH being added to the test solution, 6 M HCl is added. How will this affect the test for the presence of ammonium ion in the solution? Explain.

  How to find what is the precent yeild for the reaction

Gaseous ammonia (NH3, 2.00 L, 703.8 torr, 23.8C) reacts with aqueous sulfuric acid (H2SO4, 0.500M, 175mL) to produce solid ammonium sulfate. 4.8275 g of product is isolated.

  What is the pressure in the can

An aerosol spray can of deodorant with a volume of 320 mL contains 2.8 g of propane gas (C3H8) as propellant. What is the pressure in the can at 20 degrees Celsius?

  Explain what is the molecular mass of the compound

Assuming an ideal solution, what is the molecular mass of the compound?

  What is the empirical formula for x

(The molecular formula for X is C8H8O2), and (The empirical formula for X is C4H4O) are all true. C) The empirical formula for X is C4H4O. D) The molecular formula for X is C8H8O2. E) X has a molecular mass of 136.

  Compute the ph after addition of the titrant

Consider the titration of 50.0 mL of 0.20 M NH 3 (K b =1.8×10 ?5 ) with 0.20 M HNO 3 . Calculate the pH after addition of 50.0 mL of the titrant.

  What is the pressure inside the container

if a 50.0 liter container holds 45 moles of a gas at a temperature of 200 C what is the pressure inside the container

  State an engineer was trying to minimize greenhouse gases

An engineer was trying to minimize greenhouse gases from car exhaust and was studying the gases that come from the trail pipe of a car at 800K.

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd