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DEPARTMENT OF CHEMISTRYFACULTY OF SCIENCE AND MATHEMATICSUNIVERSITI PENDIDIKAN SULTAN IDRISLABORATORY REPORTSKT 1013 INTRODUCTION TO INORGANIC CHEMISTRYSEMESTER 01 SESSION 2020/2021ID NUMBER1.E201820229822.E20182023010NAME1.NOR ELYA NAJIHAH BINTI DAUD2.NURSYAFIQA BINTI RAHIMIGROUPBLECTURERDR. SITI MUNIRAH BINTI SIDEKEXPERIMENT NO.EXPERIMENT 4TITLEPREPARATION OF POTTASIUM TRIS(OXALATO)-ALLUMINATE (III) TRIHYDRATEDATE25 OCTOBER 2020CHECK LIST (Please tick)MarksSpelling, punctuation and grammar10Format and style10Introduction10Materials10Methodology and jotter10Results10Discussions 10Conclusions10References (minimum 2)10Conceptual understanding10TOTAL MARKS100EXPERIMENT 4:PREPARATION OF POTASSIUM TRIS(OXALATO)-ALUMINATE(III) TRIHYDRATE
OBJECTIVEUpon completion of this experiment, student should be able to:Synthesis potassium tris(oxalate)-alluminate (III) trihydrate.INTRODUCTIONAluminium is a chemical element in the boron group with symbol Al and atomic number13. It is a silvery white, soft, nonmagnetic, ductile metal. Aluminium is the third most abundantelement (after oxygen and silicon) in the Earth's crust, and the most abundant metal there. Itmakes up about 8% by mass of the crust, though it is less common in the mantle below.Aluminium metal is so chemically reactive that native specimens are rare and limited to extremereducing environments. Instead, it is found combined in over 270 different minerals. Aluminiumis remarkable for the metal's low density and for its ability to resist corrosion due to thephenomenon of passivation. Structural components made from aluminium and its alloys are vitalto the aerospace industry and are important in other areas of transportation and structuralmaterials, such as building facades and window frames. The most useful compounds ofaluminium, at least on a weight basis, are the oxides and sulfates. Aluminium (Al) is located in p-block with principal oxidation state of 3+. TheAl surface is protected from being oxidized by a layer called aluminium oxide (Al2O3). WhenAl2O3dissolves in excess hydroxide, the aluminium hydroxide, [Al(OH)4]-ion is formed. Theaddition of oxalic acid, (H2C2O4