Calculate the ppm of 40.5 mg calcium in 3.50 grams of pill. 1.16 x 10^-3 ppm 86.4 ppm 8.64 x 10^-2 ppm 1.16 x 10^-2 ppm 8.64 x 10^-3 ppm
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5 mg = 40.5 * 10^{-3} g = 0.0405 g Show more…
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