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Q. The [iodine] in sea water is 60. ppb by mass. If one assumes that the iodine exists in the form of iodide anions, what is the molarity of iodide in sea water? (density 1.025 g/mL.)

Solved • Apr 5, 2019


Q. More than 0.10 ppm of lead in blood can lead to behavior problems. What is the molality of a solution which has 0.10 ppm of lead? Ans: 4.8 × 10–7 (Ch13,Q43)

Solved • Apr 5, 2019