Here (the second question) in the post, is how I helped a student last night.
http://www.jiskha.com/display.cgi?id=1288668297
A certain brand of iron suppluement contains FeSo4 7H20 with miscellaneous binders and fillers suppose 22.93 mL of KMnO4 solution used in the question above are needed to oxidize Fe2+ to Fe3+ in a 0.4927g pill. What is the mass percent of FeSo4 7H20(molar mass 278.03 g/mol) in the pill?
1 answer