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Practise Question - 3 Video Lecture | Crash Course for EmSAT Achieve
FAQs on Practise Question - 3 Video Lecture - Crash Course for EmSAT Achieve
| 1. What is the percentage composition of a substance in a molecule? |  |
Ans. The percentage composition of a substance in a molecule refers to the proportion of each element present in the molecule, expressed as a percentage of the total mass of the molecule.
| 2. How is the percentage composition of a substance in a molecule calculated? | |
Ans. To calculate the percentage composition of a substance in a molecule, you need to determine the molar mass of each element in the molecule and divide it by the molar mass of the entire molecule. Then, multiply the result by 100 to get the percentage.
| 3. Why is the percentage composition of a substance in a molecule important? | |
Ans. The percentage composition of a substance in a molecule provides valuable information about its chemical properties and behavior. It helps in understanding the stoichiometry of chemical reactions and can be used to predict the behavior of substances in various reactions.
| 4. Can the percentage composition of a substance in a molecule vary? | |
Ans. Yes, the percentage composition of a substance in a molecule can vary depending on the specific compound. Different compounds can have different ratios of elements, leading to different percentage compositions.
| 5. How can the percentage composition of a substance in a molecule be determined experimentally? | |
Ans. The percentage composition of a substance in a molecule can be determined experimentally through techniques such as elemental analysis or spectroscopy. These methods involve measuring the amount of each element present in a sample and calculating the percentage composition based on the obtained data.
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Nov 24, 2024 Last updated |
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