The experimental procedure above was used to generate the data in the tables below. Data Collection Table Titration Mass of Sample Initial Buret Reading (mL) Final Buret Reading (mL) 1 1.234 1.05 19.95 2 1.213 4.00 23.50 3 1.273 0.30 20.05 4 1.292 5.95 25.65 - For each titration, calculate: - The number of moles of potassium permanganate used in the titration (H x L of KMnO4) - The number of moles of iron present in the sample (stoichiometry in balanced equation) - The percentage by mass of iron in the solid sample (Equation 1) - The average mass % of iron in your unknown - The standard deviation in your % Fe results:
The experimental procedure above was used to generate the data in the tables below.
Data Collection Table
Titration Mass of Sample Initial Buret Reading (mL) Final Buret Reading (mL)
1 1.234 1.05 19.95
2 1.213 4.00 23.50
3 1.273 0.30 20.05
4 1.292 5.95 25.65
- For each titration, calculate:
- The number of moles of potassium permanganate used in the titration (H x L of KMnO4)
- The number of moles of iron present in the sample (stoichiometry in balanced equation)
- The percentage by mass of iron in the solid sample (Equation 1)
- The average mass % of iron in your unknown
- The standard deviation in your % Fe results:
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