H5P Content 11119

Would you expect the value of Henry's law for oxygen to change if the temperature changes, and if so, would you expect it to increase or decrease if the temperature rises from 20^oC to 40^oC?

Yes and increase as most substances solubilities increase as temperature increases
no, it is a constant, and so does not change as the temperature changes
Yes and decrease, this is because the solubility of gases decrease as temperature increases

Which of the following are valid units of Henry's law for a given gasseous solute?

0.007g/atm
0.007 g/(l^.atm)
0.007M/torr
0.007M/atm
0.007M^.atm/l
0.007 l^.atm/mol
0.007 mole/(l^.atm)

Air is 78.08% nitrogen, 20.95% oxygen, 0.934% Argon, 0.417% carbon dioxide and other trace compounds. What is the concentration of oxygen in water that is exposed to air at 298K and 1 atm?

0.00014
0.00048
0.00027
0.000013

Air is 78.08% nitrogen, 20.95% oxygen, 0.934% Argon, 0.417% carbon dioxide and other trace compounds. What is the concentration of nitrogen in water that is exposed to air at 298K and 1 atm?

0.00014
0.00027
0.00048
0.000013

Air is 78.08% nitrogen, 20.95% oxygen, 0.934% Argon, 0.417% carbon dioxide and other trace compounds. What is the concentration of argon in water that is exposed to air at 298K and 1 atm?

0.00014
0.000013
0.00027
0.00048

Air is 78.08% nitrogen, 20.95% oxygen, 0.934% Argon, 0.417% carbon dioxide and other trace compounds. What is the concentration of carbon dioxide in water that is exposed to air at 298K and 1 atm?

0.00027
0.00014
0.000013
0.00048

^{What is the concentration of a gas is at 1.56atm if it is 1.4mM at 0.78atm?}

0.0028 M
0.028M
.78M
0.0064

^{What is the concentration of a gas is at 0.60 atm if it is 8.9 mM at 0.83atm?}

0.028M
.78M
0.0028 M
0.0064