If the partial pressure of oxygen in the air a diver breathes is too a. the urge to breathe is reduced and not enough co2 is removed from the body b. hyperventilation results c. the urge to breathe is increased and excessive co2 is removed from the body d. respiratory tissue is damaged by oxidation e. no problems result from this situation

E. no problems result from this situation

Explanation

Increase in the partial pressure of oxygen has a light effect on the amount of oxygen bound to haemoglobin.

number of molecules / avogadro's number * molecule molecular = mass

explanation:

we define a gram-molecular weight as the mass of one mole of any element or compound. a mole contains avogadro's number of units (molecules) –  

6.022

x

10

23

. so, dividing the number of molecules by avogadro's number gives us the number of moles. multiplying that by the molecular weight gives us the mass. from the periodic table we find the gram-molecular weight of u to be238 and of f to be19. so,  

u

f

6

will have a gram-molecular weight of 352g.