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Videos: Acidity and Indicators Video Lecture | IGCSE Cambridge Science for Year 6 - Class 6
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FAQs on Videos: Acidity and Indicators Video Lecture - IGCSE Cambridge Science for Year 6 - Class 6
| 1. What are indicators used for in the context of acidity? |  |
Ans. Indicators are substances that change color in response to the presence of acids or bases. They are used to determine whether a solution is acidic, basic, or neutral based on the color change they exhibit.
| 2. How do indicators work to show the acidity of a solution? | |
Ans. Indicators work by changing color based on the concentration of hydrogen ions (H+) in a solution. In acidic solutions, the concentration of hydrogen ions is higher, causing the indicator to change color to indicate acidity.
| 3. Can you give examples of common indicators used to test for acidity? | |
Ans. Some common indicators used to test for acidity include litmus paper (which turns red in acidic solutions and blue in basic solutions), phenolphthalein (which turns pink in basic solutions), and methyl orange (which turns red in acidic solutions).
| 4. How can the acidity of a solution be determined using indicators? | |
Ans. To determine the acidity of a solution using indicators, a few drops of the indicator are added to the solution. The color change that occurs indicates whether the solution is acidic, basic, or neutral.
| 5. Why is it important to understand acidity and indicators in chemistry? | |
Ans. Understanding acidity and indicators is important in chemistry as it allows for the identification and classification of different types of solutions. It also helps in determining the pH level of a solution, which is crucial in various chemical reactions and processes.
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Nov 01, 2024 Last updated |
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