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The glass stirring rod is used in liquid transfer in order to prevent spillage and facilitate the maximum amount of liquid transferred from one vessel to the next. The liquid's surface tension, or the fact that like molecules will tend to "stick" to each other make the liquid transfer virtually seamless from the lip of one vessel, to the stirring rod, and into the receiving vessel.
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Why should use a glass rod when pouring a liquid into a narrow-mounted container?
A glass rod should be used when pour liquid into a narrow mouthed container because of the adhesive force between the glass and the liquid. This will cause the liquid to run down the glass rod and into the narrow mouth without spills.
Why do you need a glass rod in transferring liquids especially corrosive ones from one container to another?
To avoid splashing and losses of solution.
Why did you use the glass stir rod in filtering the mixture?
The glass stir rod is used to help move the mixture around during filtration. This ensures that the solid particles are well dispersed in the liquid, improving the efficiency of the filtration process and helping to separate the desired solid product from the liquid.
What is the use of glassrod in decantation?
A glass rod is used in decantation to help carefully pour off the liquid portion of a mixture from the solid sediment at the bottom of the container. By gently stirring the mixture with the glass rod, the liquid can be separated without disturbing the solid particles, allowing for a cleaner separation process.
What happen if after rubbing the glass rod with cloth and place it near a pieces of paper?
The glass rod will become charged and attract the paper due to static electricity. This is because rubbing the glass rod with cloth transfers electrons, giving the rod a negative charge. The paper, being neutral, will be attracted to the negatively charged rod.
