Jessica Brought a diamond on eBay. then Clarissa told her sometimes people sell cubic zircon it as diamonds .Jessica 1 carat diamond masses to 0.22 g. by placing it in a very precise graduated Cylinder the liquid level rose from 20.00 mL to 20.06 mL . Real diamonds have a density of 3.6 g while fake ones have a density of 5.7 g. is it likely that just got ripped off or did she get the real thing?

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.