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CHEMISTRY 1441 Lab

 


UTA-502: Separation of a Three Component Mixture

Separation of a Three Component Mixture        

Objective: To separate a three component mixture into three pure components using standard physical and chemical techniques.


UTA-503: Determining the Empirical Formula of a Copper Oxide

          

Objective: To determine the copper to oxygen ratio in a simple compound, CuxOy, containing only these two elements.


UTA-504: Titration as an Analytical Method Determining the Acid Content in Vinegar

          

Objective: To determine the acetic acid concentration in a vinegar solution of unknown acid concentration using titration.


UTA-505: Qualitative Analysis: Identifying Simple Salts from their Properties and Reactions

          

Objective: Determine the chemical identity of six unknown salts by obsering simple physical properties and reactivity


UTA-506: The Ideal Gas Law and Gas Constant

          

Objective: To determine the gas constant, R, by generating a known amount of gas and measuring its volume, pressure and temperature.


UTA-507: Hess's Law and Calorimetry

          

Objective: To determine the heat of formation (ΔH°f) of MgO using calorimetry and Hess's Law


UTA-508: Synthesis of Tris-1,10-phen iron(II) chloride

          

Objective: To prepare tris-1,10-phenanthroline iron(II) chloride while maintaining high lab skill quality.


UTA-509: Spectrophotometric Determination of Purity and Concentration

          

Objective: To determine the purity of the coordination complex "green crystals" by determining its molar extinction coefficient (ε). The molar extinction coefficient will also be used to determine the concentration of some solutions of green crystals in which the concentration is unknown.


UTA-510: Atomic Emission Spectra of Gases: Evidence of Quantum Structure

          

Objective: To observe the atomic emission spectra of different gas phase atoms and to relate the observed spectra to the underlying atomic structure


UTA-511: Chemiluminescence Optimization of a Chemical Reaction

          

Objective: To determine the optimum concentrations, pH and catalysts for oxidation of laminal with hydrogen peroxide as measured by the reactions chemiluminescence.


UTA-512: Molecular Shapes By Valence Shell Electron Pair Repulsion (VSEPR) Theory

          

Objective: To practice using Lewis structures, VSEPR theory and molecular models for determining and describing molecular shapes.

 

 

CHEMISTRY 1442 Lab

 

UTA-440: Recrystallization of Acetaminophen from Tylenol

          

Objective: To isolate and purify acetaminophen from Tylenol or generic brand capsules. To learn the techniques of recrystallization and melting point determination.


UTA-441: Freezing Point Depression in tert-Butyl Alcohol

          

Objective: To determine the molar mass of an unknown solute by freezing point depression in tert-Butyl Alcohol.


UTA-442: Chemical Kinetics: Determining the Rate Law for a Chemical Reaction

          

Objective: The rate law for the reaction between bleach (sodium hypochlorite) and blue food dye (FD&C Blue No. 1) will be determined using a modern spectrophotometer and standard techniques.


UTA-443: Synthesis of Green Crystals Trans-dichloro-bis-ethylenediamine Colbolt(III) chloride

          

Objective: To synthesize and isolate a compound, trans-dichloro-bis-ethlenediamine colbalt(III) chloride. Note: The better your laboratory technique, the more product you will obtain which will be reflected in your technique grade.


UTA-444: Analysis of 'Green Crystals' for Cobalt Content

          

Objective: To determine the cobalt content of the green crystals using ion exchange and titration techniques.


UTA-445: Colorimetric Determination of the Equilibrium Constant for the Formation of a Complex Ion.

          

Objective: To determine the equilibrium constant for the formation of a complex ion, FeSCN2+ , using a spectrophotometer.


UTA-446: Buffer Solution Behavior

          

Objective: The pH of buffered and unbuffered solutions will be examined under a number of conditions.


UTA-447: Behavior of Strong and Weak Acids Upon Titration

          

Objective: The pH of solutions of strong and weak acids will be monitored as a function of aded hydroxide ion so that their behavior can be established.


UTA-448: Enthalpy and Entropy of a Reaction

          

Objective: To determine the equilibrium constant (Keq) of a reaction as a function of temperature and use this data to determine the enthalpy change (ΔH°), entropy change (ΔS°) and free energy change (ΔG°), of the reaction.


UTA-449: Redox Titration

          

Objective: To determine the composition of an unknown using a titration based on a redox reaction.


UTA-450: Construction of Simple Batteries and Measurement of Half-Cell Potential

          

Objective: To construct three simple electrochemical cells (batteries) and to see how well their measured cell potential matches that calculated by theory under non-standard conditions.


 

 

 

 

CHEMISTRY Success Tips

 

 

 

How to Succeed in General Chemistry

          


How to get an A in Chemistry

          


Key to Success: For some, general chemistry will be extremely interesting and exciting. For those students, you should remember to take advantage of every resource you have and get involved with the department. Talk to professors and figure out all the opportunities there are at UTA to get involved in chemistry and the fascinating research being conducted at this University. However, not all of you will think as fondly of chemistry. For those who aren't as excited about chemistry, remember many fields of science require a solid knowledge of all the topics learned in these classes, and many other fields require the problem solving skills that this class will help develop. The main tool for success in these classes is your ability to stay motivated. Getting an 'A' and learning all you need to know is not an impossible task. Putting in the time and effort will actually make this a very reachable goal. If you feel stuck, lost, or just need some extra help then the chemistry clinic and the chemistry professors are always willing and happy to help. Use your resources! Be prepared to put in the time and try to stay as motivated as you can, remembering that you are working toward whatever educational goal you have set for yourself. This class may be a fun part of that path to your goal, or it may seem to be a little rough. Whatever the case is, put in the effort and stay motivated and you may be surprised how well you can do!

 

 

 

 

 

 

Department of Chemistry and Biochemistry

The University of Texas at Arlington · Arlington, Texas 76019-0065 USA

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