United States or Cyprus ? Vote for the TOP Country of the Week !
Determine the percentage of iron in a sample of limonite from the following data: Sample = 0.5000 gram. KMnO used = 50 cc. 1 cc. KMnO = 0.005317 gram Fe. FeSO used = 6 cc. 1 cc. FeSO = 0.009200 gram FeO. !Answer!: 44.60%. If 1 gram of a silicate yields 0.5000 gram of Fe O and Al O and the iron present requires 25 cc. of 0.2 N KMnO , calculate the percentage of FeO and Al O in the sample.
Word Of The Day