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Which type of glassware, the 10 mL graduated cylinder, 100 mL graduated cylinder, or the 100 mL beaker would have the least amount of uncertainty for measuring 8 mlL of water? (Which glassware will measure 8 mL most precisely?)

Explain.

User Joe Dow
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1 Answer

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Final answer:

The 10 mL graduated cylinder will provide the most precise measurement of 8 mL of water due to its finer gradations and lower level of uncertainty compared to the other options given.

Step-by-step explanation:

When measuring a specific volume of liquid, the precision is determined by how finely a measuring tool is marked. In this case, we're comparing the precision for measuring 8 mL of water using three types of glassware: a 10 mL graduated cylinder, a 100 mL graduated cylinder, and a 100 mL beaker.

The 10 mL graduated cylinder will typically have more finely marked increments (often 0.1 mL or 0.2 mL), allowing for a more precise measurement of 8 mL. The small graduations make it easier to determine the level of the liquid, especially when looking at where the bottom of the meniscus falls. Given that each mark represents a smaller volume, the uncertainty is less than in larger devices.

A 100 mL graduated cylinder will have larger increments because it is designed to measure larger volumes. While it's still possible to measure 8 mL with this cylinder, the estimated division between marks will be larger, hence a higher uncertainty in comparison to a 10 mL cylinder.

The 100 mL beaker is generally the least precise instrument for measuring liquid volumes because the marks are even more widely spaced than on a graduated cylinder. Beakers are typically used for rough measurements and mixing solutions rather than for precise volume determination.

Therefore, for the most precise measurement of 8 mL of water, the 10 mL graduated cylinder is the best choice due to its finer gradations and lower level of uncertainty.

User Mikepenz
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