Respuesta :
Answer:4.42 g= 1 mol/55.845 =.079 moles of Fe
Explanation:Given 4.42 grams of Fe. The atomic weight of Fe(iron) found on the periodic table is 55.845. Divide grams by the atomic weight to convert to moles.
The moles of iron atoms in 4 nails has been 0.08 mol.
The moles of a compound has been determined with the mass of compound in respect to molar mass.
The moles of compound have been given by:
[tex]\rm Moles\;=\;\dfrac{Mass}{Molar\;mass}[/tex]
Computation for moles of iron nails
The mass of 4 iron nails has been found as 4.42 grams.
The molar mass of iron has been 55.845 g/mole.
Substituting the values for moles of iron;
[tex]\rm Moles\;Iron=\;\dfrac{4.42}{55.845}\;mol\\Moles\;Iron=0.0791\;moles\\Moles\;Iron=0.08\;mol[/tex]
The moles of iron atoms in 4 nails has been 0.08 mol.
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