Column chromatography - Study guides, Class notes & Summaries

Analytical Chemistry - Study of separation, identification, and quantification of chemical components of a material. Standards - Solution of known concentration used to determine an unknown concentration. Instrumental Chemistry - A field within analytical chemistry that studies chemicals through the use of instruments. Forensic Chemistry - The application of chemistry to law enforcement. Separation Science - The theory and practice of separating molecules. Qualitative Analysis - Determini...

Chromatography-a technique that separates a mixture into individual components when the mixture is carried through a stationary phase by a mobile phase Stationary phase-the phase that is fixed in place in chromatography column or plate -could be solid or liquid Mobile phase-the phase that carries the analyte mixture through the stationary phase -could be gas or liquid Elution-the process in which analytes are carried through the stationary phase by the movement of the mobile phase Diff...

The process of making RNA from DNA - Answer-Transcription The process by which RNA is decoded and polypeptides are formed - Answer-Translation Autonomously replicating small circles of DNA present in some bacteria - Answer-Plasmids Modifications of DNA in an organism - Answer-Genetic engineering Parkinson's, diabetes, and cystic fibrosis (CF) are examples of - Answer-Genetic disorders Organism that does not have nucleus or membrane bound organelle, so DNA in contained in cytoplasm - Answe...

1. How do the molecules that play a role in living cells compare to those encountered in organic chemistry? a. They are the same, just operating in a different context. b. Biological molecules are organic molecules, but the similarity ends there. c. Biological molecules aren't similar to organic molecules at all. d. Biology isn't based on molecules at all, but a "vital force". ANSWER: a POINTS: 1 QUESTION TYPE: Multiple Choice HAS VARIABLES: False LEARNING OBJECT...

BACE EXAM 4.0 LABORATORY SKILLS QUESTIONS AND ANSWERS 2024 Disinfection the process of cleaning something, especially with a chemical, in order to destroy bacteria. an area object or person Decontamination is the removal of dangerous substances, radioactivity or germs from...? dangerous substances radioactivity and germs Decontamination is the removal of what? Aseptic technique assures that you don't introduce contaminants into a specimen and that infectious agent...

Mobile Phase correct answers Liquid or gas that flows through a chromatography system Stationary Phase correct answers The solid or liquid phase of a chromatography system on which the materials to be separated are selectively adsorbed. Adsorbent correct answers Solid material that takes up the particles of the substance passing through it Support correct answers A solid base which supports the liquid film in partition chromatography Development correct answers The process where mobi...

What quantity of Compound 1 (483.5g) must be provided to prepare 100.00 mL of solution with a concentration equal to Ki (60.3uM)? M=mol/v 1 umol=0.000001 moles (1x10^-6) 2.92mg If only [I] is increased, then [ESI] or [EI] increases. This is an example of: A. the Bose-Einstein Principle. B. the Heisenberg Uncertainty Principle. C. the Le Châtelier's Principle. D. the Pauli Exclusion Principle. Solution: The correct answer is C. A. The Bose-Einstein Principle states that a co...

BIOCHEMISTRY LAB REPORT 4| PORTAGE LEARNING|WITH PROCEDURES, EXPLANATION AND FINAL RESULTS| LATEST UPDATE 2024 SCORED A+ Experiment #: Lab 3 Title: Chromatography of molecules. Purpose: The goals for the student performing the experiment are 1. Explain the fundamentals of chromatography. 2. Demonstrate ion exchange and sizeexclusion chromatography. 3. Separate a Real-World sample. The student should be able to use the techniques learned and be able to apply them to further use in the lab...

BIOCHEMISTRY LAB 8 REPORT| PORTAGE LEARNING|WITH PROCEDURES, EXPLANATION AND FINAL RESULTS| LATEST UPDATE 2024 SCORED Lab 8: Isolation of Limonene CHEM 212: Organic Chem Laboratory Background: Distillation is a common wet-chemical technique used to separate and purify organic liquids. In this experiment, steam distillation was used to separate limonene (oil of orange) from orange peels. Steam distillation is a method whereby codistillation with water allows the distillation of relativel...

Draw a block diagram of a GC instrument, labeling all the important components. - Mobile phase reservoir ---> Sample injector (micro syringe) ---> Stationary Phase (column) ---> Detector (thermal conductor) ----> Read-out (computer) In a GC experiment, a student injects 2.0 μL of a 20% ethanol/water solution into the GC. Calculate the weight of ethanol that has been injected. (The density of ethanol is 0.789 g/mL at 20° C.) - 0.789 g/ml -> 0.789 mg/μL 20% of 2.0 = 0.4 0....