Procedure: analytically transfer between 0.4053g of iron(III) chloride hexahydrate, FeCl 3•6 H2O (M = 270.2957g•mol-1), and dissolve in 5.5 mL distilled, deionized water. Support the tube on a stir plate and over a 15-minute period add, using the 10mL burette, 5mL of a nominal 600mM solution of 2,4 pentandione in methanol under constant stirring. To the resulting solution, add via a 10mL burette 3mL of a nominal 450mM sodium acetate solution stirring constantly. At this point, a red crystalline solid should begin to precipitate. Transfer and support the reaction vessel in the hot water bath and once the reaction mixture has reached a stable temperature in the desired range, maintain the reaction mixture at this temperature, under constant stirring, for a 15-minute period Initial weight of iron(III) chloride hexahydrate: 0.4053g The final weight of the reaction tris(acetylacetonate)iron(III): 19.6 mg 3. What is the charge on the metal in the starting material for your synthesized compound? Similarly, what is the charge on the metal in the product compound? Based on the reaction stoichiometry, why is the complex neutral? 4. Acetic acid is a product in the conversion of 4-hydroxy-3-penten-2-one to the 2,4-pentadionate ion. Based on the quantities of materials you used in this synthesis, determine how many moles of acetic acid were produced.
Procedure:
analytically transfer between 0.4053g of iron(III) chloride hexahydrate, FeCl 3•6 H2O (M = 270.2957g•mol-1), and dissolve in 5.5 mL distilled, deionized water. Support the tube on a stir plate and over a 15-minute period add, using the 10mL burette, 5mL of a nominal 600mM solution of 2,4 pentandione in methanol under constant stirring. To the resulting solution, add via a 10mL burette 3mL of a nominal 450mM sodium acetate solution stirring constantly. At this point, a red crystalline solid should begin to precipitate. Transfer and support the reaction vessel in the hot water bath and once the reaction mixture has reached a stable temperature in the desired range, maintain the reaction mixture at this temperature, under constant stirring, for a 15-minute period
Initial weight of iron(III) chloride hexahydrate: 0.4053g
The final weight of the reaction tris(acetylacetonate)iron(III): 19.6 mg
3. What is the charge on the metal in the starting material for your synthesized compound? Similarly, what is the charge on the metal in the product compound? Based on the reaction stoichiometry, why is the complex neutral?
4. Acetic acid is a product in the conversion of 4-hydroxy-3-penten-2-one to the 2,4-pentadionate ion. Based on the quantities of materials you used in this synthesis, determine how many moles of acetic acid were produced.
Answer 3:
The starting material for the synthesized compound is iron(III) chloride hexahydrate, FeCl3•6H2O.
The iron ion in this compound has a charge of +3 since it is combined with three chloride ions, each with a charge of -1.
The product compound is tris(acetylacetonate)iron(III), which is neutral since it contains one iron(III) ion with a charge of +3, and three acetylacetonate ligands, each with a charge of -1
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
