Explain a chamber containing methanol

Assignment Help Chemistry
Reference no: EM13554920

1. A sample was spotted on two different TLC plates:

a) One plate was placed in a chamber containing methanol, and after developed it showed one spot with an Rf value of 0.97. The other plate was placed in a chamber containing hexane, and after developed it showed two spots, one with an Rf value of 0.54 and one with an Rf value of 0.37. Explain how this occurred.

b) One plate was placed in a chamber containing hexane, and after developed it showed one spot with an Rf value of 0.05. The other plate was placed in a chamber containing ethyl acetate, and after developed it showed two spots, one with an Rf value of 0.15 and one with an Rf value of 0.46. Explain how this occurred.

Reference no: EM13554920

Questions Cloud

Find the magnitude of the acceleration of the proton : A proton accelerates from rest in a uniform electric field of650 N/C. At some later time, its speedis 1.3 106 m/s. Find the magnitude of the acceleration of the proton. How long does it take the proton to reach this speed?
State straight line could fit across the diameter of a penny : The diameter of a penny is 19mm. the diameter of a Cu atom is 2.6A. How many Cu atoms side by side in a straight line could fit across the diameter of a penny
Explain redox equation using the smallest integers possible : Balance the following redox equation using the smallest integers possible and select the correct coefficient for the Mn2+. Mn(s) + Cr2O72-(aq) + H+(aq) ? Mn2+(aq) + Cr3+(aq) + H2O(l)
Find the initial tangential velocity of the bicycle wheel : A bicycle wheel of radius 0.50 m is rolling without slipping on a horizontal surface with an angular speed of 3pie rad/s when the cyclist begins to uniformly apply the breaks. find the initial tangential velocity of the bicycle wheel
Explain a chamber containing methanol : One plate was placed in a chamber containing methanol, and after developed it showed one spot with an Rf value of 0.97. The other plate was placed in a chamber containing hexane
Values of the average speedover the entire trip is : A car is driven from point A to B at a constant speed of 25.0m/s along a straight line, and then back from point B to A at aconstant speed of 20.0 m/s. The values of the average speedover the entire trip is?
Find the momentum of inertia of the hoop : A 2.0 kg hoop rolls without slipping on a horizontal surface so that its center proceeds to the right with a constant linear speed of 6.0 m/s. Find the momentum of inertia of the hoop
Explain h2s and h2o have similar structures : H2S and H2O have similar structures and thier central atoms belong to the same group. Yet H2S is a gas at room temperature and H2O is a liquid. Use bonding principles to explai why this is. What is the difference between H2O and H2S
What length of line is seen by someone : A paperweight is made of a solid glass hemisphere with index of refraction 1.50. What length of line is seen by someone looking vertically down on the hemisphere

Reviews

Write a Review

Chemistry Questions & Answers

  Steps in the mechanism for the following reaction

Show all the steps in the mechanism for the following reaction, When benzene is mixed with deuterated sulfuric acid, deuterium is slowly incorporated onto the ring. Show the mechanism for this reaction and explain how this relates the sulfonation of ..

  Prior to placing piece of metal into the graduated cylinder

This assignment inhibits chemistry Laboratory Questions.

  Write the structures of the saytzeff elimination

Write the structures of the saytzeff elimination

  Calculate ph - chemistry questions

Chemistry Questions on Calculate P H

  How many mols of hydrogen can produce

how many mols of H 2 can produce

  Analysis of corrosion mechanisms

Analysis of corrosion mechanisms and preventative measures

  Chemical and pharmaceutical science

Write an equation for the formation of an acetal from reaction of excess methanol with benzaldehyde in the presence of an acid catalyst.

  Calculate the approximate sulphur

Calculate the approximate SO 2 mass emission in lb/day.

  What is the structure - stereochemistry

What is the structure (including functional groups)? Stereochemistry (racemic or single enantiomer)?

  Design a qualitative analysis scheme

Design a qualitative analysis scheme

  What will be the resultant pressure

What will be the resultant pressure when the stopcock is opened?

  The 1h nmr spectrum

Integrals for some of the resonances in the 1H NMR spectrum are higher than they should be due to the shear number of hydrogens in this compound

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