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A 0.45g sample of mineral ore is analyzed for chromium and found to contain 0.560mg Cr2O3. Express the concentration of Cr2O3 in the sample as a.Percent b) parts per thousand (pot) c) parts per million
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A 0.45g sample of mineral ore is analyzed for chromium and found to contain 0.560mg Cr2O3. Express the concentration of Cr2O3 in the sample as a.Percent b) parts per thousand (pot) c) parts per million (ppm) d) parts per billion (ppb)

User Tal Segal
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C. With a second iron ring around the beaker​. 2. See answers ... A 0.45g sample of mineral ore is analyzed for chromium and found to contain 0.560mg Cr2O3.
User Budamivardi
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