Sodium bismuthate (NaBiO3) oxidizes MnCl2 to MnO4 ̶  and is consequently reduced to Bi(OH)3.  How many grams of NaBiO3 are needed to oxidize 5.0 g of MnCl2?

Mass of KxFe(C2O4)y · zH2O : 4.70 g Mass of sample : 0.175 g Mass of FeCl3 used in preparation : 1.60 g Molarity of standard NaOH used : 0.100 V1, volume of standard NaOH required for first equivalence point : 7.750 mL V2, volume of standard NaOH required for second equivalence point : 19.70 mL Calculate the mass of iron in the sample :

8) Why are some elements, such as Zn or Si, greatly enriched in deep waters of the North Pacific relative to the deep North Atlantic, while other elements, such as Al and Pb, are greatly depleted? (

What is the oxidation number of Cl in POCl3?

Explain reaction between SAE 304 stainless steel and isopropanol and why it may cause rust?

Write a balanced ionic equation for the reaction of Fe²+, Fe³+, and OH to form magnetite, Fe3O4(S) H₂O may enter into the equation

K2Cr207 + 7H2C204 · 2H2O 2K[Cr(C204)2(H2O)2] · 2H2O + 6CO2 + 13H2O Is this is redox reaction? if so, what element is being oxidized? what is initial and final oxidation state?