If Sample #1 contains 2.3 moles of chlorine gas in a 3.5 liter balloon and at the same
conditions Sample #2 contains 1.2 moles of chlorine gas, what is the volume of the
balloon that contains Sample #2?

a

explanation:

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.

it is stable as it is in group 0 which have full outer shells of electrons