Solution Found!
Solved: A sample of iron ore (containing only Fe21 ions)
Chapter 4, Problem 4.97(choose chapter or problem)
A sample of iron ore (containing only Fe21 ions) weighing 0.2792 g was dissolved in dilute acid solution, and all the Fe(II) was converted to Fe(III) ions. The solution required 23.30 mL of 0.0194 M K2Cr2O7 for titration. Calculate the percent by mass of iron in the ore. (Hint: See 4.95 for the balanced equation.)
Questions & Answers
QUESTION:
A sample of iron ore (containing only Fe21 ions) weighing 0.2792 g was dissolved in dilute acid solution, and all the Fe(II) was converted to Fe(III) ions. The solution required 23.30 mL of 0.0194 M K2Cr2O7 for titration. Calculate the percent by mass of iron in the ore. (Hint: See 4.95 for the balanced equation.)
ANSWER:Step 1 of 5
The balanced equation is as follows;