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6.67 x 10-3 g of arsenic (As) is found in a 0.600 L sample of water. If the density of this sample is 1.00 g/mL, what is the concentration of arsenic in ppm?
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15 votes
15 votes
6.67 x 10-3 g of arsenic (As) is found in a 0.600 L sample of water. If the density of this

sample is 1.00 g/mL, what is the concentration of arsenic in ppm?

User James Hopkin
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3.1k points

1 Answer

25 votes
25 votes

ppm = mg/L = mg/kg

6.67 x 10⁻³ g = 6.67 mg

ppm = 6.67 mg : 0.6 L = 11.12

User Gvalkov
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3.0k points
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