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Solid copper (III) wire reacts with sulfur in a synthesis reaction. If 1.35*10^25 atoms of
copper react with 15.0 grams of sulfur, how many grams of product will be produced and
how much excess reactant will be left over?

Respuesta :

Moles of copper

  • No of molecules/Avagadro no
  • 1.35×10²⁵/6.022×10²³
  • 0.022×10^²
  • 2.2moles

Mass of copper

  • 2.2(63.5)
  • 13.97g

Now

According to law of conservation of mass

Mass of products=Mass of reactants

  • 13.97+15
  • 28.97g

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