Answer:- 0.0002 ppm
Solution:- 1 ppm is one mg of solute per liter of solvent or one kg of solvent.
It asks to convert pb in blood to ppm. density of blood is
.
Let's convert micrograms to milligrams and also calculate the mass of blood from it's given density. The set up could be made using dimensional analysis and doing unit conversions as:
First the set up for the conversion of micrograms of Pb to milligrams:
=
Now, the set up for converting dL of blood to kg using it's given density and unit conversion from dL to mL as:
= 0.200 ppm
