Children Under the Age of Six with More Than 0

question 78

Multiple Choice

Children under the age of six with more than 0.10 ppm of lead in their blood can suffer a reduction in I.Q. or have behavior problems. What is the molality of a solution which contains 0.10 ppm of lead?

• A) 4.8 × 10^-10 m
• B) 4.8 × 10^-7 m
• C) 4.8 × 10^-4 m
• D) 4.8 × 10^-1 m
• E) none of the above