A 18.5 gram sample of metal was added to a graduated cylinder that had an initial volume of 45.50 mL. The water level raised to 54.10 mL. Using
this information, calculate the density of the metal. *

Explanation:

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In this case, since the density of the metal is computed as shown below:

We need to calculate the volume of the solid by subtracting the final volume and the initial volume of water:

Thus, we obtain:

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answer; /// i do believe that the correct answer is (a) boiling

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.