What pressure of oxygen gas is required to to keep its concentration at 0.020 M in an aqueous medium? (Henry's law costant for O2 is 1.3 x 10-3 M/atm)
A. 2.5 atm
B. 2.6 x 105 atm
C. 15 atm
D.3.5 atm
E. 0.065 atm

Ans. : frostbite is when exposure to cold temperatures causes freezing to the skin or other tissues. it most commonly affects the hands, feet, and face. the longer areas are exposed to cold, typically the worse the frostbite. the water temperature used for rewarming a frostbitten part should be : (102 -105) f degrees.

Ibelieve the answer is d. titaniumhope my answer has you : )

50? i have no !