In clinical applications, 1 ppm is equivalent to 1 mg of solute per 1 L of solution. Calculate the concentration in ppm for each of the following solutions:
a) 39μg calcium in a total volume of 83 mL.
b) 0.51 mg caffeine in a total volume of 147 mL.
c) 0.61 mg trace particle in a total volume of 97 dL solution.
CHEM HELP?
2018-03-12 7:37 am
回答 (1)
2018-03-12 8:10 am
a)
(0.039 mg) / (0.083 L) = 0.47 mg/L = 0.47 ppm
b)
(0.51 mg) / (0.147 L) = 3.47 mg/L = 3.47 ppm
c)
(0.61 mg) / (9.7 L) = 0.063 mg/L = 0.063 ppm
(0.039 mg) / (0.083 L) = 0.47 mg/L = 0.47 ppm
b)
(0.51 mg) / (0.147 L) = 3.47 mg/L = 3.47 ppm
c)
(0.61 mg) / (9.7 L) = 0.063 mg/L = 0.063 ppm
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