14. Solutions
Parts per Million (ppm)
14. Solutions
Parts per Million (ppm)
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- 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.
1836views8rank1comments - 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.
2617views6rank2comments - Multiple Choice
Glucose makes up about 0.102% by mass of human blood. Calculate this concentration in ppm.
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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?
4843views3rank1comments - Textbook QuestionFluoride ion is added to drinking water at low concentra- tions to prevent tooth decay. What mass of sodium fluoride (NaF) should be added to 750 L of water to make a solutionthat is 1.5 ppm in fluoride ion? (LO 13.5) (a) 1.1 g (b) 2.5 g (c) 0.51 g (d) 3.1 g957views1rank
- Textbook Question
Phosphorus is present in seawater to the extent of 0.07 ppm by mass. Assuming that the phosphorus is present as dihydrogenphosphate, H2PO4-, calculate the correspond-ing molar concentration of H2PO4- in seawater.
1070views - Textbook QuestionHow would you prepare each of the following solutions? (a) 100 mL of a 155 ppm solution of urea, CH4N2O, in water409views
- Textbook QuestionWhich of the following solutions has the higher molarity? (a) 10 ppm KI in water or 10,000 ppb KBr in water726views