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saikou
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Homework Statement
Please help me in chemical equations of redox reactions. Here are the problems.
1. Mixing potassium dichromate, K2Cr2O7, and sulfuric acid, H2SO4, in a test tube. Then, add hydrogen peroxide, H2O2, drop by drop, shaking the solution after every drop. Add until a change occurs.
2. Putting iron (II) ammonium sulfate, Fe(NH4)2(SO4)2, in a test tube. Add sulfuric acid, H2SO4, and potassium permanganate, KMnO4. Shake the solution. Test the presence of iron (III) by adding a drop of potassium thiocyanate, KSCN. Iron (III) gives a dark red solution if present.
3. Put iron (III) chloride, FeCl3, in a test tube and add potassium iodide, KI. Put a drop of potassium ferricyanide, K3Fe(CN)6. Iron (II) gives a dark blue precipitate if present.
4. Put iron (III) chloride, FeCl3, in a test tube and potassium iodide, KI. Add hexane, C6H14. Iodine produces a pink carbon tetrachloride or hexane layer if present.
P.S. What is product of of oxidation and product of reduction?
Homework Equations
1. Potassium Dichromate = K2Cr2O7
Sulfuric Acid = H2SO4
Hydrogen Peroxide = H2O2
2. Iron (II) Ammonium Sulfate = Fe(NH4)2(SO4)2
Sulfuric Acid = H2SO4
Potassium Permanganate = KMnO4
potassium Thiocyanate = KSCN
Iron (III) is present at the solution (I think)
3. Iron (III) Chloride = FeCl3
Potassium Iodide = KI
Potassium Ferricyanide = K3Fe(CN)6
Iron (II) is present
4. Iron (III) Chloride = FeCl3
Potassium Iodide = KI
Hexane = C6H14
Iodine is present
The Attempt at a Solution
I don't know what to include in the reaction so I'll leave it like this. :(
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