A 100 cm³ measuring cylinder has an uncertainty of ± 1.00 cm³. A student used the measuring cylinder to measure 25.00 cm³ of a
solution into a burette. The burette has an uncertainty of 0.05 cm³. Assuming no other errors what range of readingscould the burette
give for the accurate transfer of the 25.00 cm³ of solution.

Question

18-09-2022
Chemistry

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A 100 cm³ measuring cylinder has an uncertainty of ± 1.00 cm³. A student used the measuring cylinder to measure 25.00 cm³ of a
solution into a burette. The burette has an uncertainty of 0.05 cm³. Assuming no other errors what range of readingscould the burette
give for the accurate transfer of the 25.00 cm³ of solution.

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tripatsingh039 tripatsingh039 · Answer 1 · 2022-09-21T20:25:13+02:00

Every burette reading must have two decimal places, with the second number being either 0 or 5. A percentage error of 0.2% is produced for each reading by a one-drop mistake in a volume of 25.00 cm3. You could attempt to put the measurements and methods together.

In terms of percentage, relative uncertainty equals x x 100. If we know the relative uncertainty, we may use the formula absolute uncertainty = relative uncertainty 100 measured value to determine the absolute uncertainty. As a result, the uncertainty of the mass measurement and the uncertainty of the density determination affect the uncertainty of the volume, which means that the factors determining the uncertainty accumulate as each physical quantity is measured.

Learn more about uncertainty here-

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