CHE515 Instrumental Chemistry For Engineers  UITM Assignment Answer Malaysia 

CHE515 Instrumental Chemistry for Engineers is an advanced chemistry course offered at UITM (Universiti Teknologi MARA) in Malaysia. The course focuses on the application of modern analytical methods to study and understand chemical compounds. Students will learn how to use various cutting-edge techniques to elucidate the structures and properties of chemicals. This CHE515 course is designed to equip engineering students with the necessary skills and knowledge to tackle complex analytical challenges in their fields of study.

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Assignment Task1 : Describe the most appropriate analytical method for structural determination and environmental heavy metal pollution assessment.

The most appropriate analytical method for structural determination and environmental heavy metal pollution assessment is Inductively Coupled Plasma Mass Spectrometry (ICP-MS). ICP-MS is a powerful and sensitive technique used for the quantitative and qualitative analysis of trace elements, including heavy metals, in various environmental samples.

Here’s why ICP-MS is suitable for these tasks:

• Sensitivity: ICP-MS can detect heavy metals at extremely low concentrations, even in complex environmental matrices, due to its high sensitivity. This is crucial for accurately assessing pollution levels in the environment.
• Wide Element Range: ICP-MS can simultaneously analyze a wide range of elements, making it efficient for assessing multiple heavy metal contaminants in a single analysis.
• Structural Determination: ICP-MS provides accurate mass measurements, which can help identify specific isotopes of elements, aiding in the determination of their structural forms.
• Precision and Accuracy: ICP-MS offers excellent precision and accuracy, which is essential when dealing with environmental samples with low heavy metal concentrations.
• Environmental Sample Compatibility: ICP-MS can analyze various sample types, including water, soil, sediment, air particles, and biological tissues, making it versatile for environmental studies.
• Isotopic Analysis: Isotopic information obtained through ICP-MS can be used to distinguish between natural and anthropogenic sources of heavy metal pollutants.

Overall, ICP-MS is a reliable and widely used analytical method for environmental heavy metal pollution assessment and structural determination of heavy metal species.

Assignment Task 2 : Analyze spectra and determine the functionality and structure of an unknown substance

To analyze spectra and determine the functionality and structure of an unknown substance, a combination of spectroscopic techniques is often employed. Some of the common techniques include:

• Infrared Spectroscopy (IR): IR spectroscopy provides information about the functional groups present in a compound. It helps identify chemical bonds and vibrations, aiding in determining the molecule’s functional groups.
• Nuclear Magnetic Resonance (NMR) Spectroscopy: NMR spectroscopy provides detailed information about the connectivity of atoms in a molecule, helping to deduce its structure. It also gives insights into the presence of different chemical environments within the molecule.
• Mass Spectrometry (MS): Mass spectrometry can provide the molecular mass and fragmentation pattern of the compound. It helps determine the molecular formula and confirm the presence of specific functional groups.
• UV-Visible Spectroscopy: UV-Vis spectroscopy is useful for analyzing the electronic transitions of molecules, especially in conjugated systems. It can give information about the presence of chromophores and conjugated systems.
• Elemental Analysis: Elemental analysis helps determine the percentage composition of elements in the compound, providing important clues about its structure and functionality.

By combining the data obtained from these techniques, researchers can deduce the functional groups, connectivity of atoms, and overall structure of the unknown substance

Assignment Task 3 : Conduct experiment to achieve a predetermined goal

To conduct an experiment and achieve a predetermined goal, the following steps should be followed:

1. Define the Objective: Clearly state the goal of the experiment. Whether it’s to synthesize a compound, investigate a reaction, or study a specific phenomenon, a well-defined objective is crucial.
2. Literature Review: Conduct a thorough literature review to gather relevant information about the experiment, including previous studies, methods, and potential challenges.
3. Design the Experiment: Develop a detailed experimental plan that outlines the materials required, step-by-step procedures, data collection methods, and safety precautions.
4. Gather Materials and Equipment: Procure all the necessary materials, chemicals, and equipment needed for the experiment. Ensure that all instruments are calibrated and in proper working condition.
5. Safety Precautions: Prioritize safety throughout the experiment. Identify potential hazards and implement safety measures to protect yourself and others.
6. Conduct the Experiment: Follow the experimental plan precisely, recording observations and data as you progress.
7. Data Analysis: Analyze the data collected during the experiment using appropriate statistical or analytical methods.
8. Interpret Results: Interpret the results obtained and compare them with the predetermined goal to assess whether the experiment achieved its objective.
9. Draw Conclusions: Based on the results, draw conclusions about the success of the experiment and discuss any potential implications.
10. Report and Presentation: Document the experiment, including the objective, methods, results, and conclusions, in a detailed report. Prepare a presentation summarizing the key findings.

Remember to document all steps and observations thoroughly for future reference and verification. Good record-keeping is essential in scientific experiments. Additionally, be prepared to troubleshoot unexpected challenges that may arise during the experiment and adapt accordingly.

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