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Unidade 7 - Reagentes limitantes
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Unidade 7 - Reagentes limitantes

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Reagentes limitantes

Reagentes limitantes

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  • 1. 1 Química Geral Prof. Dr. Márcio Marques Martins Unidade 7 – Reagentes limitantes http://digichem.org
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  • 8. 8 7 RODAS 3 CHASSIS
  • 9. 9 1 CHASSI + 2 RODAS = 1 MOTO
  • 10. 10 6 RODAS : 3 CHASSIS SOBROU 1 RODA, O LIMITANTE É O CHASSIS E O EXCESSO É A RODA
  • 11. 11 R.E.: 1 mol CaC2 : 2 mols H2O : 1 mol Ca(OH)2 : 1 mol C2H2 1 mol.64 g/mol : 2 mols.18g/mol : 1 mol.74 g/mol : 1 mol.26 g/mol R.M.: 64 g CaC2 : 36 g H2O : 74 g Ca(OH)2 : 26 g C2H2 (a) 1,00 x 102 g 1,00 x 102 g
  • 12. 12 R.E.: 1 mol CaC2 : 2 mols H2O : 1 mol Ca(OH)2 : 1 mol C2H2 1 mol.64 g/mol : 2 mols.18g/mol : 1 mol.74 g/mol : 1 mol.26 g/mol R.M.: 64 g CaC2 : 36 g H2O : 74 g Ca(OH)2 : 26 g C2H2 (a) 1,00 x 102 g 1,00 x 102 g Montar uma regra de três usando os dados da Relação Mássica 64 g CaC2 36 g H2O 1,00 x 102 g x g H2O 56,25 g H2O (essa é a massa de H2O necessária para reagir completamente com 1,00 x 102 g de CaC2.56,25 g H2O < 100 g H2O (presentes no sistema), Portanto H2O é o reagente em excesso e CaC2 é o reagente limitante.
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