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9. Solutions

Parts per Million (ppm)

9. Solutions

Parts per Million (ppm)

Multiple Choice
A 5.12 L sample of solution contains 0.230 g of potassium sulfate, K₂SO₄. Determine the concentration of K₂SO₄ in ppm if the density of the solution is 1.30 g/mL.
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Multiple Choice
Calculate the concentration in parts per billion of the following aqueous solution:0.91 mg of caffeine in a total volume of 131 mL.
282
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Multiple Choice
Glucose makes up about 0.102% by mass of human blood. Calculate this concentration in ppm.
217
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Multiple Choice
The average human body contains about 5,000 grams of blood. What mass of arsenic is present in the body if the amount in blood is 0.86 ppb?
202
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Multiple Choice
A water sample contains the pollutant chlorobenzene with a concentration of 16 ppm (by volume). What volume of this water contains 5.01×10² mL of chlorobenzene?
574
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Textbook Question
The maximum amounts of lead and copper allowed in drinking water are 0.015 mg/kg for lead and 1.3 mg/kg for copper. Express these values in parts per million, and tell the maximum amount of each (in grams) allowed in 100 g of water.
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Textbook Question
Uric acid, the principal constituent of some kidney stones, has the formula C₅H₄N₄O₃. In aqueous solution, the solubility of uric acid is only 0.067 g/L. Express this concentration in (m/v)%, in parts per million, and in molarity.
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