Grade 12 Burette Reading Worksheet
A worksheet for Grade 12 Chemistry students to practice reading and understanding burette measurements.
Includes
Standards
Topics
Burette Reading Practice
Name:
Date:
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Carefully read the instructions for each section and answer all questions to the best of your ability. Pay close attention to meniscus readings and significant figures.
A burette is a laboratory tool used to dispense variable, measured amounts of a chemical solution. It is used for accurate dispensing of liquid reagents, especially in titrations to deliver an amount of a reagent to a very high degree of precision. Proper reading of a burette is crucial for accurate experimental results. Remember to always read the bottom of the meniscus at eye level.
1. When reading a burette, which part of the meniscus should be used for the most accurate measurement?
The top of the curve
The middle of the curve
The bottom of the curve
Any part, as long as it's consistent
2. What is the typical precision of a standard laboratory burette?
± 0.1 mL
± 0.01 mL
± 0.05 mL
± 1 mL
3. A burette is typically read to two decimal places, with the last digit being an digit.
4. The volume delivered by a burette is calculated by subtracting the final reading from the reading.
5. Parallax error can be avoided by ensuring your eye is with the meniscus when reading the burette.
6. Describe the proper procedure for filling a burette and ensuring there are no air bubbles.
7. Explain why it is important to read the burette at eye level.
For each image below, record the burette reading to the correct number of significant figures.
8. Reading:
9. Reading:
10. Reading:
11. The smallest division on a standard 50 mL burette is typically 0.1 mL.
True
False
12. It is acceptable to tap the burette to dislodge air bubbles after taking an initial reading.
True
False