<span>The Greenland ice sheet is a vast body of ice covering 1,710,000 square kilometers, roughly 80% of the surface of Greenland. It is the second largest ice body in the world, after the Antarctic ice sheet.</span><span />
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
Answer:
P (H₂) = 741 torr
Explanation:
Let's begin by listing out the given parameters:
Temperature (water) = 298 K, volume = 45.6 mL,
atmospheric pressure, P (total) = 765 torr, vapor pressure of water, P (H₂O) = 24 torr
To get the pressure of inside the tube, P (H₂), we apply Dalton's Law of Partial Pressure and we have:
P (total) = P (H₂) + P (H₂O)
P (total) = 765 torr, P (H₂O) = 24 torr
P (H₂) = P (total) - P (H₂O) = 765 - 24
P (H₂) = 741 torr
It therefore becomes clear that the pressure of H₂(g) is 741 torr
