Multiple Choice
Which statement best describes how to properly measure liquid volume using a graduated cylinder to ensure correct significant figures?
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1. Intro to General Chemistry
Significant Figures: Precision in Measurements
Multiple Choice
What is the correct reading for the liquid in the burette provided below?
A
7 mL
B
7.0 mL
C
7.20 mL
D
7.00 mL
E
6.80 mL
Verified step by step guidance1
Observe the meniscus of the liquid in the burette. The meniscus is the curved surface of the liquid, and the correct reading is taken at the bottom of the meniscus.
Identify the scale on the burette. Each major division represents 1 mL, and the minor divisions typically represent 0.1 mL.
Locate the bottom of the meniscus. In the image, the meniscus is between the 7 mL and 8 mL marks.
Count the minor divisions from the 7 mL mark to the bottom of the meniscus. Each minor division represents 0.1 mL, so count how many divisions are visible.
Add the number of minor divisions to the 7 mL mark to determine the precise volume reading. This will give you the reading in mL with two decimal places.
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