Verificação da Série de Atividade

Teste de reatividade metálica com reações de deslocamento

Electrochemistry Beginner (Middle School) 30 min ~$12,00

Objetivo

Verificar a série de atividade eletroquímica testando se os metais podem deslocar outros metais da solução.

Contexto

A more reactive (more easily oxidized) metal will displace a less reactive metal from its salt solution. By testing multiple combinations, students can experimentally construct the activity series: Zn > Fe > Cu > Ag.

Avisos de segurança

  • Silver nitrate stains skin permanently
  • Copper sulfate is toxic
  • Wear gloves when handling solutions

EPI necessário

goggles gloves lab_coat

Materiais

  • Zinc strips (3 pieces)
    Small pieces
  • Iron nails (3)
    Clean steel nails
  • Copper strips (3 pieces)
  • Copper(II) sulfate solution (50 mL)
    0.1M
  • Iron(II) sulfate solution (50 mL)
    0.1M
  • Zinc sulfate solution (50 mL)
    0.1M
  • Silver nitrate solution (30 mL)
    0.1M

Equipamentos

Test tubes and rack Sandpaper Forceps Timer

Procedimento

1

Sand all metal pieces until shiny to remove oxide layers.

3 min
2

Place 10 mL of each metal salt solution into labeled test tubes. You need: CuSO₄, FeSO₄, ZnSO₄, and AgNO₃.

3 min Wear gloves
3

Test zinc in CuSO₄ solution. Observe for 5 minutes and record changes on the metal and in the solution.

5 min
4

Test iron in CuSO₄ solution. Observe and record.

5 min
5

Test copper in ZnSO₄ solution. Observe and record (expect no reaction).

5 min
6

Test copper in AgNO₃ solution. Observe silver crystals forming on the copper.

5 min
7

Compile results into a reactivity table and rank the metals from most to least reactive.

4 min

Resultados esperados

Zinc displaces copper (blue solution fades, copper deposits on zinc). Iron displaces copper (blue fades slower). Copper does not displace zinc. Copper displaces silver (silver crystals grow). Order: Zn > Fe > Cu > Ag.

Limpeza

Collect silver waste separately in heavy metal container. Dispose of copper waste properly. Rinse metal pieces and test tubes.

Detalhes

Categoria
Electrochemistry
Dificuldade
Beginner (Middle School)
Duração
30 min
Custo estimado
$12,00
Passos
7
Materiais
7

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Frequently Asked Questions

What is the objective of Verificação da Série de Atividade?
Verificar a série de atividade eletroquímica testando se os metais podem deslocar outros metais da solução.
How difficult is Verificação da Série de Atividade?
This experiment is rated as Beginner (Middle School). It takes approximately 30 minutes to complete.
What safety precautions are needed for Verificação da Série de Atividade?
Key safety precautions include: Silver nitrate stains skin permanently; Copper sulfate is toxic; Wear gloves when handling solutions.
What materials are needed for Verificação da Série de Atividade?
The main materials required are: Zinc strips, Iron nails, Copper strips, Copper(II) sulfate solution, Iron(II) sulfate solution.
What results should I expect from Verificação da Série de Atividade?
Zinc displaces copper (blue solution fades, copper deposits on zinc). Iron displaces copper (blue fades slower). Copper does not displace zinc. Copper displaces silver (silver crystals grow). Order: Zn > Fe > Cu > Ag.