Experiment 5 Title : Thin Layer Chromatography Objectives: i. To distinguish polar and non-polar solvents. ii. To familiar with the analysis technique by using the thin layer chromatography. iii. To differentiate the retention factor‚ Rf for different compounds. [pic] Result: |Compound |Distance traveled by the compound | |o-nitroanaline |2.45
Premium Thin layer chromatography Chromatography Solvent
Stem and Leaf Plots Examples 1. A stem and leaf plot is a method used to organize statistical data. The greatest common place value of the data is used to form the stem. The next greatest common place value is used to form the leaves. 17 stem leaf 2. EXAMPLE: Make a stem and leaf plot of the algebra test scores given below. Then complete each question. 56‚ 65‚ 98‚ 82‚ 64‚ 71‚ 78‚ 77‚ 86‚ 95‚ 91‚ 59‚ 69‚ 70‚ 80‚ 92‚ 76‚ 82‚ 85‚ 91‚ 92‚ 99‚ 73 1st put the scores in numerical order. 56‚ 59‚ 64
Premium Prime number Numerical digit Plot
exchange Chromatography Ion exchange chromatography is a process for separating proteins and other molecules in a solution based on differences in net charge. Ion Exchange Chromatography relies on charge-charge interactions between the proteins in your sample and the charges immobilized on the resin of your choice. Ion exchange chromatography can be subdivided into cation exchange chromatography‚ in which positively charged ions bind to a negatively charged resin; and anion exchange chromatography‚ in
Premium Electric charge Ion Molecule
Data and Conclusions: The purpose of this experiment was to learn how to use distillation and gas chromatography to separate and identify different compounds from a given mixture. There are several kinds of distillation methods. However‚ the method that we used in this experiment was fractional distillation. This method is used when trying to separate two different volatile compounds whose boiling points differ by 40-50°C or more. If the boiling points are too close‚ this method
Premium Distillation Evaporation Water
I picked my own story for The American writer O. Henry The Name of story is: The Last Leaf a brief summary of the story: The short story took place in New York City where two friends - Sue and Johnsy - live‚ work in art in a poor apartment‚ and publish their drawings in magazines‚ and thereby earning their living‚ and like any other artist‚ they hope to draw a masterpiece one day. One day‚ Johnsy fell prey to pneumonia. The doctor visited her and told her friend-Sue- that Johnsy could be cured
Premium Family Marriage Fiction
Last leaf is a short story that entails the treasury of life and the existence of faith and hope. It heeds to the importance of living and how we deal with the hindrances we battled through our life story. It is a moving story across the traps that come across us in the most significant part of our lives. The value of life is the centerpiece of the story where all things go back and revolve. A part of the story gives us a hint that God is the only one who knows whether we ride on with life and chances
Premium Protagonist Life Character
Leaf Cutter Bees Leaf cutter bees‚ play a big part in the world. Not very many people know of their existence or what they actually do. They are very interesting little insects starting from there looks‚ actions‚ and how important their job is as a Leaf Cutter Bee. Leaf Cutter Bees; looks are very distinct. They are not like Honey Bees; they do not look like wasps or hornets. They almost resemble more of a beetle in a way. A beetle has a hard shell on their back and most beetles we think of
Premium Insect Honey bee Flower
Abstract In this experiment paper chromatography was used in order to identify two unknown amino acids using eight known amino ones. The two unknown ones were identified by comparing the distance they travelled up the chromatography paper and their Rf values to the corresponding values of the other eight known amino acids. The unknown amino acids identified were Glycine and Methionine. Introduction Proteins in cells are important in many ways. There are different types of proteins such as
Premium Amino acid
Thin Layer Chromatography Submitted in partial fulfillment of the requirements for: CHE 324 Organic Chemistry Laboratory Dr. Robert Duncan Fall Semester 2012 Caitlin Inman‚ Team Leader October 9‚ 2012 Tyler Byrd‚ Data Collection Shared Role‚ Technique Expert Introduction: “Chromatography is used to separate components of a mixture. For example‚ imagine a mixture of wood pieces‚ pebbles‚ and large rocks to be separated and the chromatography setup as a stream. Flowing water
Premium Thin layer chromatography Chromatography
The stylistic analysis of “The Last Leaf” by O’Henry The text under stylistic analysis is the short story “The Last Leaf” by O’Henry. William Sydney Porter was born on 11-th of September in 1862 in North Carolina. His mother died when he was three year old. Porter worked at drug store of his uncle. Then he went to Texas and tried many professions. For example rancher‚ bank teller‚ journalist‚ founding a comic weekly magazine The Rolling Stone. Then was employed by the Houston Post to write a humorous
Free Short story Metaphor Fiction