🎧 New: AI-Generated Podcasts Turn your study notes into engaging audio conversations. Learn more

Using Top Loading Balances
10 Questions
0 Views

Using Top Loading Balances

Created by
@BrightEarthArt

Podcast Beta

Play an AI-generated podcast conversation about this lesson

Questions and Answers

How can the accumulation of moisture or fingerprints on the vessel affect analytical results?

It can add a small mass to the sample, introducing errors in mass measurements.

Why is it important to know the mass of the vessel when weighing the final dried or ashed sample?

To subtract it from the final mass to get the mass of the dried sample or ash.

What precautions should be taken when using weighing vessels for precise measurements?

Weighing vessels should be pre-dried, handled with care, and stored in a desiccator.

How can air currents or leaning on the bench affect the accuracy of analytical balances?

<p>They can cause appreciable errors in the readings.</p> Signup and view all the answers

What type of balances are commonly used in modern laboratories?

<p>Most balances in modern laboratories are electric balances.</p> Signup and view all the answers

What type of glassware is recommended for storing strong mineral acids and organic solvents?

<p>Glass or resistant plastic</p> Signup and view all the answers

Why should dilute metal standard solutions be prepared fresh at the time of analysis?

<p>Certain dilute metal solutions may plate out on glass container walls over long periods of storage.</p> Signup and view all the answers

Which type of glassware is usually used for storing standard solutions of silica, boron, and alkali metals?

<p>Polyethylene bottles</p> Signup and view all the answers

What can happen when certain solvents dissolve plastics used for pipette tips and serological pipettes?

<p>Various problems can occur, including binding/precipitating the analyte of interest, interfering with the assay, and clogging instruments.</p> Signup and view all the answers

Why should care be taken when using ground-glass stoppers with bases?

<p>Using bases with ground-glass stoppers can cause them to 'freeze' or get stuck.</p> Signup and view all the answers

More Quizzes Like This

Serveur et Client Class Loading
10 questions
Website Loading Error Message Quiz
5 questions
Use Quizgecko on...
Browser
Browser