Draw the octahedral complex for Fe(NH4)2(SO4)2•6H2O.
5.012g of Fe(NH4)2(SO4)4. 6H2O Find the mass of K3[Fe(C2O4)3]·3H2O in g Fe(NH4)2(SO4)4. 6H2O + H2C2O4=FeC2O4(s) + H2SO4 + (NH4)2SO4 + 6H2O(l) FeC2O4 +K2C2O4 + H2O= Fe(OH)3(s) + .....etc Fe(OH)3 + H2O2 + K2C2O4=K3[Fe(C2O4)3]·3H2O + ..etc
Calculate the mass amount of Fe(NH4)2(SO4)2•6H2O needed to prepare 100mL 1000mg Fe/L stock solution?
Calculate the amount of Fe(NH4)2(SO4)2·6H2O needed to make 250mL of a 0.002M iron solution. (2 points)
A solution is prepared by dissolving 0.300 g Fe(NH4)2(SO4)2*6H2O in sufficient water to produce 250.0 mL of solution. a. What is the molar concentration of Fe2+? b. What is the molar concentration of NH4+? c. What is the concentration of sulfur in mg/L?
balance Fe(NH4)2(SO4)2·6H2O + H2C2O4 + K2C2O4 + H2O2 → K6Fe(C2O4)4·4H2O + (NH4)2SO4 + H2SO4 + H2O (Hint: Remember H2O2, an oxidizing agent, was used in the synthesis, so you’ll need to do a redox balance. Start with just the iron ions, balance the reaction, and then add the full formulas.)
What are the oxidation and reduction half reactions for: 2Fe(NH4)2(SO4)2·6H2O + 3H2C2O4 + 3K2C2O4 + H2O2 → 2K3Fe(C2O4)3·3H2O + 2(NH4)2SO4 + 2H2SO4 + 8H2O
What’s the correct formula name for Fe(NH4)2(SO4)2?
5) Draw d orbital splitting of an octahedral complex. Calculate CFSE for a high spin Fe(II) complex in an octahedral geometry. Calculate spin only magnetic moment for the complex too. 6
2. (2 points) Calculate the percentage of Fe in pure iron(I) ammonium sulfate hexahydrate: (NH4)2[Fe(SO4)2]. 6 H2O.
The complex ion Fe(NH3)42- is paramagnetic. The shape of this complex is a) octahedral b) tetrahedral c) Square planar