an empty evaporating dish weighs 25.1295 g. When unknown mixture is added, the dish and mixture weigh 29.9745 g. After removing the Fe with a magnet, the dish and remaining mixture weigh 28.2374 g. After extraction of the NaCl and drying the remaining solid, the dish and final mixture weigh 26. 8928 g. Calculate the mass and mass percent of Fe, NaCl, and SiO2 in the sample. Show all your work.
an empty evaporating dish weighs 25.1295 g. When unknown mixture is added, the dish and mixture weigh 29.9745 g. After removing the Fe with a magnet, the dish and remaining mixture weigh 28.2374 g. After extraction of the NaCl and drying the remaining solid, the dish and final mixture weigh 26. 8928 g. Calculate the mass and mass percent of Fe, NaCl, and SiO2 in the sample. Show all your work.
Chemistry & Chemical Reactivity
9th Edition
ISBN:9781133949640
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Chapter4: Stoichiometry: Quantitative Information About Chemical Reactions
Section: Chapter Questions
Problem 102GQ: Cloth can be waterproofed by coating it with a silicone layer. This is done by exposing the cloth to...
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an empty evaporating dish weighs 25.1295 g. When unknown mixture is added, the dish and mixture weigh 29.9745 g. After removing the Fe with a magnet, the dish and remaining mixture weigh 28.2374 g. After extraction of the NaCl and drying the remaining solid, the dish and final mixture weigh 26. 8928 g. Calculate the mass and mass percent of Fe, NaCl, and SiO2 in the sample. Show all your work.
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