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Experiment 8: Determination of the percentage purity of a sample of Mohr's salt by redox titration with the permanganate ion, MnO4 PRE-LABORATORY EXERCISE 1. Determine the molar mass of Mohr's salt, FeSO4(NH4)2SO4.6H₂O, and the % by mass of iron in this salt. 2. A student carried out Experiment 8 and obtained the following results. Calculate the percentage purity of the student's sample. Molarity KMnO 4 Mass of weighing vial + salt sample Mass of weighing vial after emptying Mass of salt sample Calculated minimum endpoint (± 0.5 cm³) Final burette reading Initial burette reading Volume MnO4 solution delivered 0.02596 M 10.454 g 9.288 g 23.66 cm³ 0.92 cm³ g cm 3 cm³ Experiment 8: Determination of the percentage purity of a sample of Mohr's salt by redox titration with the permanganate ion, MnO4 PRE-LABORATORY EXERCISE 1. Determine the molar mass of Mohr's salt, FeSO4(NH4)2SO4.6H₂O, and the % by mass of iron in this salt. 2. A student carried out Experiment 8 and obtained the following results. Calculate the percentage purity of the student's sample. Molarity KMnO 4 Mass of weighing vial + salt sample Mass of weighing vial after emptying Mass of salt sample Calculated minimum endpoint (± 0.5 cm³) Final burette reading Initial burette reading Volume MnO4 solution delivered 0.02596 M 10.454 g 9.288 g 23.66 cm³ 0.92 cm³ g cm 3 cm³
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Answer 1413 1 Mohrs salt FeSO 4 NH 4 2 SO 4 6H 2 O Molar mass 55845 32 4 x 16 2 x 144 32 4 x 16 6 x ... View the full answer
Related Book For
Chemistry The Central Science
ISBN: 978-0321696724
12th edition
Authors: Theodore Brown, Eugene LeMay, Bruce Bursten, Catherine Murphy, Patrick Woodward
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