A sample of N2 has a volume of 1.75 L at 0.75atm and 21 degrees C. How many moles of N2 are present?

Change in speed or direction : )

High-energy and unstable.

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.

1.75 is the weight of one medium egg