Chemistry HL IA (Grade: high 7)

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본 문서는 2019년도 IB에서 모더레이트 된 후 22/24점으로 높은 7점을 받은 Chemistry HL IA 입니다. Chemistry IA는 고득점 포인트만 제대로 짚어주면 7점을 받기 어렵지 않으나 많은 학생들이 고득점 포인트를 제대로 잡아주지 않아 7점을 놓칩니다. 제 IA의 구성과 내용을 참고하시고 각 Criterion 에서 고득점 포인트를 잡는 방법을 벤치마킹하신다면 좋은 점수를 받으실 수 있을 것입니다. 제 IA를 통해 Chemistry 파이널 점수 고득점의 열쇠인 Chemistry IA에서 좋은 점수를 받으셔서 Chemistry 파이널 점수 고득점으로 이어지기를 기원합니다.

Title: Investigation of determining whether biological or inorganic catalyst is more effective
Research Question: Which of manganese (IV) oxide and catalase is more effective as a catalyst at lowering the activation energy for the decomposition of hydrogen peroxide?

 

[본문내용]

Investigation of determining whether biological or inorganic catalyst is more effective

Research question: Which of manganese (IV) oxide and catalase is more effective as a catalyst at lowering the activation energy for the decomposition of hydrogen peroxide?

Background Information
Hydrogen peroxide
Hydrogen peroxide is a colorless liquid widely used as a disinfectant and a bleaching agent (Jrank). It is unstable and hence
can be decomposed into water and oxygen gas as shown below…(중간생략)

Hydrogen peroxide slowly decomposes in the presence of light and at room temperature, however when a catalyst is involved
in the reaction, the rate of decomposition reaction speeds up (Jrank). One industrial use of hydrogen peroxide is that
electricity can be produced in the fuel cell decomposing hydrogen peroxide (Hasegawa). Hence, if we know which catalyst is
the best at speeding up the rate of reaction, electricity can be produced more rapidly using that catalyst, which makes this
investigation valuable…

 

  • 총 페이지수: 14 pages
  • 과목명: Chemistry
  • 주제: Investigation of determining whether biological or inorganic catalyst is more effective
  • The file is in PDF format.
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Chemistry HL IA (Grade: high 7)

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