Chemistry IA Exemplar: How does temperature (25.0, 35.0, 45.0, 55.0,… | RevisionDojo

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IB Chemistry HL Internal Assessment Example

How does temperature (25.0, 35.0, 45.0, 55.0, 65.0°C) affect the adsorption of zinc ions (Zn²⁺) during 30 min time by 0.08 g carbonate-intercalated layered double hydroxide (LDH), measured by concentration of Zn²⁺ ions remaining in the solution after absorption using titration with 0.010 M EDTA?HL

Overall Score

20/24

Criteria A: Research Design

6/6

Criteria Strands

A.1Research question context

Excellent

A.2Methodological considerations

Good

A.3Methodology description

Good

Criteria Feedback

Your research question is highly specific and clearly focused on the temperature-dependent adsorption of zinc by LDH.
You show good awareness of the chemistry behind the investigation and connect the topic to a relevant real-world problem.
Your method includes enough operational detail for another student to follow the investigation in broad outline.

Some of the scientific explanation is not fully coherent, especially where the temperature trend is interpreted.
Key methodological controls, especially pH management, are described as important but not fully operationalized.
The replication plan is not fully consistent with the results presented, which weakens clarity and reproducibility.

Criteria B: Data Analysis

2/6

Criteria Strands

B.1Communication of data recording and processing

Moderate

B.2Consideration of uncertainties

Moderate

B.3Data processing quality

Poor

Criteria Feedback

You provide raw titre data, processed concentrations, and a worked calculation that makes your processing trail visible.
You include some treatment of uncertainty, such as apparatus uncertainties, error bars, and repeated measurements.
Your use of the EDTA:Zn2+ relationship is appropriate in principle.

The graph, regression information, and processed table do not match each other consistently.
Several statements in the analysis contradict the numerical values in the table.
Your uncertainty treatment is incomplete and does not clearly justify all of the values used.

Criteria C: Conclusion

6/6

Criteria Strands

C.1Conclusion relevance and support

Moderate

C.2Scientific context comparison

Moderate

Criteria Feedback

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Criteria D: Evaluation

6/6

Criteria Strands

D.1Methodological weaknesses

Good

D.2Suggested improvements

Excellent

Criteria Feedback

Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.
Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat.

Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur.
Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.

Loading scores...

Overall Score

20/24

Criteria A: Research Design

6/6

Criteria Strands

A.1Research question context

Excellent

A.2Methodological considerations

Good

A.3Methodology description

Good

Criteria Feedback

Your research question is highly specific and clearly focused on the temperature-dependent adsorption of zinc by LDH.
You show good awareness of the chemistry behind the investigation and connect the topic to a relevant real-world problem.
Your method includes enough operational detail for another student to follow the investigation in broad outline.

Some of the scientific explanation is not fully coherent, especially where the temperature trend is interpreted.
Key methodological controls, especially pH management, are described as important but not fully operationalized.
The replication plan is not fully consistent with the results presented, which weakens clarity and reproducibility.

Criteria B: Data Analysis

2/6

Criteria Strands

B.1Communication of data recording and processing

Moderate

B.2Consideration of uncertainties

Moderate

B.3Data processing quality

Poor

Criteria Feedback

You provide raw titre data, processed concentrations, and a worked calculation that makes your processing trail visible.
You include some treatment of uncertainty, such as apparatus uncertainties, error bars, and repeated measurements.
Your use of the EDTA:Zn2+ relationship is appropriate in principle.

The graph, regression information, and processed table do not match each other consistently.
Several statements in the analysis contradict the numerical values in the table.
Your uncertainty treatment is incomplete and does not clearly justify all of the values used.

Criteria C: Conclusion

6/6

Criteria Strands

C.1Conclusion relevance and support

Moderate

C.2Scientific context comparison

Moderate

Criteria Feedback

Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.
Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat.

Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur.
Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.

Criteria D: Evaluation

6/6

Criteria Strands

D.1Methodological weaknesses

Good

D.2Suggested improvements

Excellent

Criteria Feedback

Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.
Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat.

Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur.
Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.