Examine the image provided. The different colors on the continents represent where fossils of this organism, the Mesosaurus, can be found. The Mesosaurus was an ancient reptile creature that could only swim short distances in fresh water. Use your knowledge of the Tectonic Plate Theory to explain how fossils of this one organism could be found on so many continents. In you response be sure to include specific evidence for the Theory of Plate Tectonics and a general time scale for how long this geologic process may take.

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.