활동도 순서 확인

치환 반응으로 금속 반응성 시험하기

Electrochemistry Beginner (Middle School) 30 분 ~$12.00

목표

금속이 용액 속 다른 금속을 치환할 수 있는지 시험하여 전기화학적 활동도 순서를 확인한다.

배경

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.

안전 경고

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

필수 개인 보호 장비

goggles gloves lab_coat

재료

  • 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

장비

Test tubes and rack Sandpaper Forceps Timer

실험 절차

1

Sand all metal pieces until shiny to remove oxide layers.

3 분
2

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

3 분 Wear gloves
3

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

5 분
4

Test iron in CuSO₄ solution. Observe and record.

5 분
5

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

5 분
6

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

5 분
7

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

4 분

예상 결과

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.

정리

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

세부 정보

카테고리
Electrochemistry
난이도
Beginner (Middle School)
소요 시간
30 분
예상 비용
$12.00
단계
7
재료
7

더 많은 실험

황산구리 전기분해 50 min 다니엘 전지 제작 45 min 농도 전지 45 min 레몬 전지 20 min 구리 전기도금 60 min 물의 전기분해 40 min 볼타 전지 기전력 측정 60 min 녹 방지 방법 비교 30 min

Frequently Asked Questions

What is the objective of 활동도 순서 확인?
금속이 용액 속 다른 금속을 치환할 수 있는지 시험하여 전기화학적 활동도 순서를 확인한다.
How difficult is 활동도 순서 확인?
This experiment is rated as Beginner (Middle School). It takes approximately 30 minutes to complete.
What safety precautions are needed for 활동도 순서 확인?
Key safety precautions include: Silver nitrate stains skin permanently; Copper sulfate is toxic; Wear gloves when handling solutions.
What materials are needed for 활동도 순서 확인?
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 활동도 순서 확인?
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.