area.to master the properties of these elements and how to analysis these elements and their compounds Experimentte the analysis (4hours) In this experiment,the students are required to master the properties of some ions and their compounds,to master how to analvsis and separate these ions from their solutions.and deep understand applications of ions equilibrium. Experim properties and analysis of acids in toilt(hours) From the experiment,students are required to master the composition of toilet bowl cleaner and to analysis the contents of these acids. University chemistry experiment II(Total Course Hours:56;Credits 2.5) Lectures focus on the synthesis of inorganic compounds,separation of inorganic compounds and purification technology and the analysis of inorganic compounds. Experiment one.The determination of the hardness of the water by a complexometric titration method (5 hours) Understand the deter e of water hard and the expression method of the hardnes the principles and methods of water hardness by the EDTA method,the EDTA preparation and demarcaion the discoloration principle and using of the Eriochrome Black Tand the calcium indicator. Experiment two.The atomic absorption method for the detection of the hardness of the water(4 hours) Students should determine the principles and methods of water by atomic absorption method for hardness Experiment three.Preparation of ammonium ferrous sulfate and the observation of the Fecontent of the as-prepared product(10hours) 3.1 Preparation of ammonium ferrous sulfate(5 hours) The preparation of the double salt involves water bath heating.vacuum filtration.evaporation.crystallization and other b sic operations The of the as-prepared ammonium ferous sufate employs the visua colorimetric semi-quantitative analysis. 3.2 The Determination of Fe2*in Ammonium ferrous sulfate by the KMnO4 method (5 hours) Students should understand the principles and methods of determination of Fe?(I)by the KMnO method: thebration inudes the preparationand demarn of KMn Experiment four.Purification and analysis of experiments four industrial copper sulfate(16hours) 4.I Purification of industrial copper sulfate (4 hours) The basic operation involves dissolving,stirring,heating,filtration,evaporation crystallization,vacuum filtration and recrystallization method for purifying the soluble substance. ercontent(iodometric method)(5 hours) The experiment coversth e preparation a nd demarcation ofs ium thiosulphate where the principles of the iodometric determination of Cu in copper sulfate should be understood 4.3 Detection of Fe"content in copper sulfate (spectrophotometry)(4 hours) Students should understand the principles and methods of spectrophotometry for Feobservation;need the proficiency in the use of spectrophotometer 722:understand the computer processing of the experimental data sof copper sulfate (hours) -10—10— area, to master the properties of these elements and how to analysis these elements and their compounds. Experiment ten: separation on mix ions and the analysis (4 hours) In this experiment, the students are required to master the properties of some ions and their compounds, to master how to analysis and separate these ions from their solutions, and deep understand applications of ions equilibrium. Experiment eleven: properties and analysis of acids in toilet bowl cleaner (8 hours) From the experiment, students are required to master the composition of toilet bowl cleaner and to analysis the contents of these acids. University chemistry experiment Ⅱ(Total Course Hours: 56; Credits 2.5) Experimental Technology Lectures (2 hours) Lectures focus on the synthesis of inorganic compounds; separation of inorganic compounds and purification technology and the analysis of inorganic compounds. Experiment one. The determination of the hardness of the water by a complexometric titration method (5 hours) Understand the determination of the significance of water hardness and the expression method of the hardness; the principles and methods of water hardness by the EDTA method; the EDTA preparation and demarcation; the discoloration principle and using of the Eriochrome Black T and the calcium indicator. Experiment two. The atomic absorption method for the detection of the hardness of the water (4 hours) Students should determine the principles and methods of water by atomic absorption method for hardness. Experiment three. Preparation of ammonium ferrous sulfate and the observation of the Fe2 + content of the as-prepared product (10 hours) 3.1 Preparation of ammonium ferrous sulfate (5 hours) The preparation of the double salt involves water bath heating, vacuum filtration, evaporation, crystallization and other basic operations. The characterization of the as-prepared ammonium ferrous sulfate employs the visual colorimetric semi-quantitative analysis. 3.2 The Determination of Fe2+ in Ammonium ferrous sulfate by the KMnO4 method (5 hours) Students should understand the principles and methods of determination of Fe2+ (II) by the KMnO4 method; the observation includes the preparation and demarcation of KMnO4. Experiment four. Purification and analysis of experiments four industrial copper sulfate (16 hours) 4.1 Purification of industrial copper sulfate (4 hours) The basic operation involves dissolving, stirring, heating, filtration, evaporation, crystallization, vacuum filtration and recrystallization method for purifying the soluble substance. 4.2 The determination of copper sulphate of copper content (iodometric method) (5 hours) The experiment covers the preparation and demarcation of sodium thiosulphate standard solution where the principles of the iodometric determination of Cu2+ in copper sulfate should be understood. 4.3 Detection of Fe3+ content in copper sulfate (spectrophotometry) (4 hours) Students should understand the principles and methods of spectrophotometry for Fe3+ observation; need the proficiency in the use of spectrophotometer 722; understand the computer processing of the experimental data. 4.4 Differential thermal analysis of copper sulfate (3 hours) Students should understand the basic principles and methods of differential thermal analysis; understand of the