Aluminium sulphate is organic or inorganic compound

Inorganic compound the vast majority of compounds, including all aluminum-containing minerals and all commercially significant aluminum compounds, feature aluminum is in oxidation state 3+. the coordination number of such compounds varies, but generally Al3+ is either six or four coordinate.

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.