Chemistry, 19.04.2021 01:00 skyhe34

0.45g sample of mineral ore is analyzed for chromium and found to contain 0.560mg Cr 2 O 3 . Express the concentration of Cr 2 O 3 in the sample as: (a) Percent (%) (b) Parts per thousand (ppt) (c) Parts per million (ppm) (d) Parts per billion (ppb)

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0.45g sample of mineral ore is analyzed for chromium and found to contain 0.560mg Cr 2 O 3 . Express...