Course Syllabus for English-Taught Majors

Inorganic Chemistry Experiment-1Course Syllabus

Course Code09041003

Course CategoryMajor Core

MajorsIntensive training class

SemesterFall

Total Hours56 Hours         Credit2

Lecture Hours0 Hours          Lab Hours56 Hours        

InstructorsYahong Li  

TextbooksInorganic Chemistry Experiment

References

1. Inorganic chemistry experiment (1st Edition), Eds: Lang Jianping, Bian Guoqing, Nanjing University press, 2009.

2. Inorganic chemistry experiment (4th Edition), Eds: Beijing Normal University, etc., Higher education press.

3.Inorganic chemistry (4th Edition), Eds: Beijing Normal University, etc., Higher education press.

4. Inorganic chemistry (3rd Edition), Eds: Wuhan University, etc., Higher education press.

 

 

Teaching Aim

  

This course is designed to familiarize the student with the basic knowledge of the safety and rules of the chemical laboratory, and operations of the glassware and measuring apparatus. Students will master the basic operations of heating, dissolving, stirring, generation and collection of the gas, evaporation and condensation, and know how to record the data. From this course, students will also learn the chemical properties and reactions of the main elements and their compounds, know how to prepare the inorganic and coordination compounds and understand how to determine the chemical constants and its related chemical principles.

 

Experiment One: Washing and Drying the Glassware  

Total Hours4 hours.

 

Contents of the experiment Claim, wash and dry the glassware.

The purposes of the experiment Know the rules and requirements of the inorganic chemistry laboratory. Claim and know the names and scales of the commonly used glassware in inorganic chemistry experiment. Learn and practice the methods for washing and drying the commonly used glassware.

Problems: When dry test-tube, why should the mouth of the test-tube be slightly tilted downwardly?

 

Experiment Two: Operations of Burners and Manufacture of Glass and Plastic Tubes

Total Hours4 hours.

Contents of the experimentOperation of gas burner. Manufacture of glass tube and drill a plug.

The purposes of the experimentUnderstand the constructions and operations of the gas burner and alcohol burner. Study the operations for cutting, bending, pulling and melting glass tubes. Practice the operations for bending, straightening, thinning, drilling and mending the polyethylene plastic pipe. Practice the basic operation of drilling on a plug.

 

Problems:

1) In which part of the burner, the temperature is highest or lowest? Why?

2) Manufacture of glass tube.
(1) Practice the operation of truncation, smoothing, bending and pulling of glass tube.

(2) Make two bend tubes, two pipettes and two glass rod stirrers and melting glass.

3) Drill a plug

(1) Practice the operation of plug drilling

(2) Find a plug and drill a hole on it.  

 

Experiment Three: Taking and Using of the Reagents and Test-Tube Operation

 

Total Hours4 hours.

 

Contents of the experiment“ Blue bottle” experiment. Five color experiment. Three color cup experiment. Dehydration of CuSO4•5H2O.

The purposes of the experimentLearn and master the methods for taking solid and liquid reagents. Practice and master the operations for shaking the test-tube and heating solid and liquid reagents in the test tubes.

 

Experiment Four: Preparation of Solution

 

Total Hours4 hours.

 

Contents of the experimentRoughly and accurately preparing the solution.

The purposes of the experimentPractice the operation of pipette, densimeter and volumetric flask. Master the methods and basic operations of making a solution, whose concentration is expressed as mass fraction, molality and molarity. Understand the method for preparing the special solutions.

Problems:

1) Does the volumetric flask need to be dried when it is used for preparing a solution? Does it need to be washed by the diluted solution for three times?

2) How to wash pipette? The pipette cleaned by water has to be rinsed by the measured solution, why?

3) When a student prepares the solution of copper sulfate, he weighs copper sulfate by analytical balance and measures water with cylinder. Is his operation right? Why?

 

 

Experiment Five: Titration Operation

Total Hours4 hours.

Contents of the experimentDetermine the concentrations of NaOH and HCl solutions.

The purposes of the experimentMaster the principle and operation of the titration through determining the concentrations of NaOH and HCl solutions by titration. Study the operation of burette.

Problems:

What are the effects of the following operations on the results?
(a) After titration, one drop of the solution is left outside the mouth of the burette.
(b) After titration, there are air bubbles in the mouth of the burette. 
(c) In the process of titration, the solution is left to the inner wall of the conical flask.
(d) Does the color of the mixture change in the endpoint after it is lasted for a while, when acid solution is titrated with base using phenolphthalein as indicator?

 

 

Experiment Six: Preparation of the High Purity Sodium Chloride from the Crude Salt

Total Hours4 hours.

Contents of the experimentPurification of sodium chloride. Purity examination of the product.

The purposes of the experimentStudy the method of preparing reagent level sodium chloride by purification of the sea salt and determining the purity of the reagent level sodium chloride. Practice the operations of dissolve, filtration, evaporation and crystallization and the basic operations of preparation and purification of the gas.

Problems:

1) Analyze the effect of the amount of water in the process of dissolvation on the experimental results.

2) In the experiment of SO42- removing, could CaCl2 solution be instead of BaCl2? If not, why?
3) Could Na2CO3 solution be added to remove Ca2 +, Mg2 + ion firstly and then BaCl2 solution is added to remove SO42- ion in this experiment? Why?

 

 

Experiment Seven: Preparation of Hydrogen Gas and Determination of the Relative Atomic Mass of Copper-Generation of Hydrogen Gas and Its Safety Use

 

Total Hours4 hours.

Contents of the experimentThrough the reducibility of hydrogen gas to determine the relative atomic mass of copper.

The purposes of the experiment Through the preparation of pure hydrogen gas, learn and practice the basic operations of generation, collection, purification and drying. Determine the relative atomic mass of copper by the reductive property of hydrogen gas.

 

Problems:

 

1) Point out the function of each part of the experiment devices and write the corresponding reaction equation. The test-tube should be slightly downward, why?

2) What are the effects of the following conditions on the determination of the relative atomic mass of copper?

(1) There is water in the sample or the test-tube is not dry.

 (2) Copper oxide is not transformed into copper completely.

 (3) The water condensed in the mouth of the test-tube is not dried by filter paper.

3) Can you use experiment to prove there are chlorine and oxygen elements in KClO3?

 

 

Experiment Eight: Preparation of Ferrous Ammonium Sulfate from Crude Iron Scrap

 

Total Hours4 hours.

Contents of the experimentPurification of crude iron scrap and preparation of (NH4)2SO4·Fe(SO4)·6H2O.

The purposes of the experimentlearn  the basic operations and principles of preparation of ferrous ammonium sulfate.

Problems:

1) What should we pay attention to when condense the solution?

2) Why should we add H2SO4 (1mL, 3 mol L-1) after the reaction between iron scrap and H2SO4 is completed?

 

Experiment Nine: The Ionization Equilibrium and Precipitation Equilibrium

 

Total Hours4 hours.

Contents of the experimentPreparing buffer solution and determine the properties of the solutions. Test the equilibrium of dissolve and precipitation.

The purposes of the experimentThrough the experiment, further understand the basic principles of the ionization equilibrium, the hydrolysis equilibrium, the precipitation equilibrium and the common ion effect.  Study the properties of buffer solution, know the conditions of precipitate formation, dissolve and transform and learn the manipulation of centrifuge, the pH indicator paper and separation by using centrifuge machine.

Problems:

1) In the experiment of stepwise precipitation, when we add the silver nitrate solution, we observed the brown precipitation was produced first, and the color of the precipitate was not changed. Analyze the operation mistakes and explain why the color was not changed.

2) Summarize the conditions of the dissolution of the precipitates.

 

Experiment Ten: Determination of the Ionicity and Ionization Constants of Acetic Acid: the Use of pH Meter

Total Hours4 hours.

Contents of the experimentDetermination the concentrations of acetic acid solutions. Determine the pH value, calculate the ionicity and ionization equilibrium constant of the acetic acid solutions Determine the ionicity and ionization constant of acetic acid. 
The purposes of the experimentLearn the basic principle of titrate and titration operation. Know how to judge the end point of the titration. Practice the use of pH meter.

Problems:

1) Will the ionicity and the ionization constant be changed when we change the concentration of HAc solution or temperature? What are the changes?
2) What is the key procedure of this experiment?
3) Can we use  to calculate the ionization constant?
1Add some NaAc solid to the HAc solution (suppose the volume will not be changed);
2Add some NaCl solid to the HAc solution (suppose the volume will not be change).
4) What are the results under the following conditions? 
1There are bubbles in the bottom of burette during the titration process. 
2When it is close to the end point, the wall of the conical flask is not flushed by distilled water.
3There is a liquid bubble hanging on burette while the titration is finished.
4During the titrate process, the solution was leaked from the stopper of the burette. 
Experiment Eleven: Molecular Weight Measurement of CO2

Total Hours4 hours.

Contents of the experimentUsing the Kipp apparatus to determine the relative molecular weight of CO2 gas.
The purposes of the experiment Understand the principles and the methods for determining the molecular weight of a gas by measuring the relative density of the gas. Learn the assembly and application of the Kipp apparatus, gas washing bottle, and drying tube. Learn the manipulation of analytical balance and mechanical balance.

Problems:

1)We weigh the mass of (CO2+ Conical flask+ Stopper) by analytical balance, while weigh the mass of (water+ Conical flask+ Stopper) by electronic platform balance. Explain why.

2) Why should the stopper be inserted to the same marked depth of conical flask every time?

3)Why should the measurement of mass (CO2+ Conical flask+ Stopper) be repeated until the difference is less than 1mg? If the measurement of the mass is unstable, explain the reason.

4) Explain the origin of the positive error and the negative error.

Experiment Twelve: Transition Metals of Iron, Cobalt, Nickel

Total Hours4 hours.

Contents of the experimentTest the reduction properties of iron (II), cobalt (II), nickel (II) and the oxidation property of iron (III), cobalt (III) and nickel (III).
The purposes of the experimentTest and master the reduction properties of iron (II), cobalt (II), nickel (II) and the oxidation properties of iron (III), cobalt (III) and nickel (III). Test and master the properties and preparation of the coordination complexes of iron, cobalt and nickel.
Experiment Thirteen: Preparation of a Cobalt(III) Complex

Total Hours4 hours.

Contents of the experimentPreparation of a cobalt (III) complex.

The purposes of the experimentLearn the commonly used method for preparing metal complex——substitution and redox reactions in aqueous solution. Understand their basic principles and methods. Draw the preliminary conclusion to the constitution of the complex. Learn how to use electric conductivity meter.

Problems:

1) Which steps are quite essential to improve the yield of the product? Why?
2) Try to summarize the chemical principle and main procedures for preparing Co(III) complex.
3) There are five different complexes. They all could be expressed as K2CoCl2I2(NH3)2. Conductivity measurements indicated that their conductivities in aqueous solution are close to that of sodium sulfate. Please write the structures of five complexes and explain the differences among five complexes. 

Experiment Fourteen: Preparation of Aluminum Sulfate

Total Hours4 hours.

Contents of the experimentPreparation of sodium aluminate, aluminum hydroxide and aluminium sulfate.

The purposes of the experiment Prepare aluminum sulfate. Study and master the reaction between metal aluminum with base. Practice the basic operations of dissolve, evaporation, crystallization and filtration.

 

Assessment Methods

(a)Experimental report (70%).

(b)Test (30%)

 

Experimental report = preview report (10%) + experiment result (40%) + operation skill (40%) + experiment report (10%)

Total grade = Experimental report + Test

 

 

 

 

                               Made by Yahong Li

                               Date:  2016-11-08