CHM 2046L - General Chemistry Laboratory II

College of Natural Sciences

Credit(s): 1
Contact Hours: 45
Effective Term Spring 2025 (645)

Requisites

Pre- or Co-requisite CHM 2046 with a minimum grade of C

Course Description

This course is a continuation of General Chemistry Laboratory I. It includes some qualitative analysis.

Learning Outcomes and Objectives

  1. The student will develop the ability to accurately perform basic laboratory operations such as weight and volume determinations with 1% accuracy by:
    1. determining the mass with an analytical balance.
    2. applying the rules of significant figures, rounding, and exponential notation to the correct precision for the numerical result of a measurement or a calculation.
    3. measuring the volumes of liquids with using burets, graduated cylinders, and pipettes.
    4. using a spectrophotometer to measure percent transmission or absorbance of a solution, and using the data to determine concentration given a calibration curve.
    5. determining the temperature using a centigrade thermometer and converting to centigrade, Kelvin, and Fahrenheit temperatures.
    6. applying redox titration techniques.
    7. obtaining accurate reaction rate data and calculating the correct order of a reaction and the value of the rate constant for the reaction.
    8. using pH paper, Universal indicator, special indicators and a pH meter in determinations of the pH of aqueous solutions.
  2. The student will obtain accurate experimental data and interpret these data correctly by:
    1. applying simple stoichiometric principles in calculations with experimental data.
    2. using a buret in the standardization of a solution of a base, and using that standardized base to determine the concentration of an unknown acid using a titrimetric technique.
  3. The student will present data in graphic, tabular, or descriptive format in laboratory reports by:
    1. plotting experimental data graphically and interpolate and extrapolate using the resulting curves.
    2. composing laboratory reports that accurately reflect laboratory results.
  4. The student will design and carry out simple qualitative analytical procedures by:
    1. showing correct techniques in laboratory operations involving simple separation procedures, such as centrifugation, filtration and decantation.
    2. applying the concept of colligative properties to calculate the concentrations of unknown solutions.
    3. manipulating the direction of equilibrium shifts in solutions by applying Le Chateliers principle.
    4. applying the theory of complex ion formation in separating simple mixtures of ions.
    5. writing net ionic equations which represent reactions involved in separation procedures.
    6. recognizing redox reactions and writing the correctly balanced equation for the reaction.
    7. using the concept of basicity of anions to predict, the effect that pH will have on the solubility of a given ionic substance.
    8. describing and preparing a flowchart for the identification of several cations and anions in the laboratory.
    9. devising simple and rapid separation and identification schemes for any given group of cations and anions and identifying unknown ions using the schemes.

Criteria Performance Standard

Upon successful completion of the course the student will, with a minimum of 70% accuracy, demonstrate mastery of each of the above stated objectives through classroom measures developed by individual course instructors.

History of Changes

Revised 8/2/83. Revised 8/84. DBT 2/86 Effective Session 19861. DBT 7/16/87 Effective Session 19871. DBT 12/15/88 Effective Session 19891. DBT 5/15/90 Effective Session 19901. 3 YR C&I Review 1993-94. 3 Year Review 9899. C&I 11/9/99; DBT 12/14/99 Effective Session 19992. 3 Year Review 2003. 3 Year Review 2007: C&I 11/13/07, BOT 12/17/07, Effective 20072(0390). C&I Approval: 10/12/2010, BOT Approval: 11/16/2010, Effective Term: Spring 2011 (435).
C&I Approval: , BOT Approval: , Effective Term: Spring 2025 (645)

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