In the hydration processes of aluminum carbide (Al4C3), methane gas (CH4) and aluminum hydroxide, Al (OH) 3, are obtained, according to the following reaction: Al4C3 + H2O → CH4 + Al (OH) 3
If you have 9 moles of aluminum carbide and 6 moles. Determine: a) Limiting reagent and excess reagent. b) The moles of Al (OH) 3 that are obtained.
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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.