11. The hemoglobin from red corpuscles of most mammals contains about 0.33% iron. Hemoglobin has a molar mass of 6.8x 104 g/mole.
How many moles of Fe are there in 1
mole of hemoglobin?
How many Fe atoms are there in 1 mole of hemoglobin?

If two atoms are bonded to a central atom with no lone pairs,how will they be arranged

How does the motion of particles in a gas change as the gas cools

Aroom with dimensions 7.00m×8.00m×2.50m is to be filled with pure oxygen at 22.0∘c and 1.00 atm. the molar mass of oxygen is 32.0 g/mol. how many moles noxygen of oxygen are required to fill the room? what is the mass moxygen of this oxygen?