A 120.0 gram sample of metal at 75.0 degrees Celsius is
added to 150.0 g of water at 15.0 degrees Celsius. The
temperature of the water rises to 18.3 degrees Celsius. What
is the specific heat of the metal?

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.

56 moles of   lieter in chemistry

gas

explanation:

smoke is the matter of a gas