lauadden 3 3 of 25 Sapling Learning In clinical applications, the unit perts per

Question

lauadden 3 3 of 25 Sapling Learning In clinical applications, the unit perts per million (ppmy express very small concentrations of solute, s used to where 1 ppm is equivalent to 1 mg of solute per for each of the following solutons. a) There are 35 pg of calclum in a total volume of 87 mL. Number ppm b) There is 0.75 mg of caffeine in a total volume of 145 mL Number ppm c) There is 0.55 mg of trace particles in a total volume of 55 dL solution ppm o Previous Givn up s vine Solution Check Answer o Next Exit

Explanation / Answer

a) 1 microgram/mL = 1 mg/L

Hence 35microgram/87mL = 0.4023 mg/L

= 0.4023 ppm

b) 1 mg/mL = 1000 mg/L

O. 75 mg/ 145 mL = 0.0052 mg/mL = 0.0052*1000 mg/L

= 5.2 ppm

c) 1 mg/dL = 10 mg/L

0.55 mg/ 55dL = 0.01*10 mg/L

= 0.1 ppm

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