Explain why the actual coefficients of the ferrous ammonium sulfate hexahydrate and the potassium iron oxalate complex in the balanced equation describing the overall process are not required for computing the predicted weight of the product.
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Explain why the actual coefficients of the ferrous ammonium sulfate hexahydrate and the potassium iron oxalate complex in the balanced equation describing the overall process are not required for computing the predicted weight of the product.
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- In the preparation of ammine complexes of cobalt (iii), why do you think both reaction mixtures were cooled before the products were collected by filtration?Which of the following statements is true regarding the iron-phenanthroline method? I. Any wavelength of radiation can be utilized with no change in the results. II. Blank correction must be performed to account for any absorbing species other than the analyte in the solution. III. This method can be used to discriminate and quantify the Fe3+ and Fe2+ content in the sample. II and III I and II III only II onlyQuestion: How does the structural arrangement of metal centers influence the catalytic activity and selectivity of bioinorganic systems?
- Why is EDTA complex formation less complete at lower pH?Methanoic acid is a reducing agent, but ethanoic acid is not. Describe how acidified potassium manganate (V11) could be used to distinguish between them??Discuss the binding mode and geometry of the imido and cyclopentadienyl ligands in the tungsten complex below.
- copper complex crystallises straightaway when synthesising but the cobalt complex required the solution to be concentrated and cooled before it is filtered to obtain product. what does this tell you about the realtive solubilities of the copper and cobalt complexes.Students occasionally observe the formation of a solid white side product, sometimes appearing as a white residue on the walls of the test tube, in the recovery and isolation of the copper metal in Reaction E ( CuSO4(aq) + Mg(s) --> Cu(s) + MgSO4(aq) ). Speculate on the identity of this white solid. (Use of online resources may be helpful.)What part does adsorption play in froth floatation for the concentration of sulphide ores and heterogeneous catalysis?
- Explain the chelate effect using Fe3+ and EDTA as the ligand and Fe3+ and 6 ammonias as ligands and provide one product in which EDTA is found.Why is the observed magnetic moment less than the spin only magnetic moment for a hexaureachromium (III) chloride complex?Mention 3 typical organic complexing agents in the environment and describe in which environments (in the widest sense) they are found and which elements are particularly taken up.