Data Record your data either in your lab notebook or in the space below.
Aluminum
Copper
Iron
Lead
m
mobile
Mass of metal g)
Mass of calorimeter (no lid) g)
Mass of calorimeter (no lid) + water (g)
m
Mass of water g)
(Subtract masses above.)
100.0
100.0
100.0
Initial temperature of metal (°C)
100.0
Initial temperature of water (°C)
Final temperature of both (°C)
AT water (C)
(Final - Initial)
ATmetal (°C)
(Final - Initial)
Specific heat of metal, Cmetal

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.