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The bulb
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∙ 10y ago
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Why is indicator added to a pipette solution before titration?
I'm not sure what you really mean. There wouldn't be any point adding it afterwards! It's there to reveal the end point of your titration. You could add it when you thought you were near the end point, but it's easier to put it in before you start.
What is more accurate than a pipette?
a pipette is more accurate than a graduated cylinder due to allowing a greater amount of control on how much fluid you want. With a graduated cylinder, you pour the fluid into it, and risk accidentally pouring in too much or not enough, causing you to have to pour some out or add still more. With a pipette, the control mechanism (depends on type of pipette), allows far greater control over how much and how fast you want to add fluid. Any errors therefore, tend to be smaller and easier to remedy.
What do you call the end of a straw wrapper that a waiter leaves on your straw when serving your drink?
strawlace
What is the last thing you should do at the end of a lab?
Clean up anything used and put away equipment.
Why is titration repeated without indicator?
In a titration the pipette is used to transfer 25 cm3 (usually to ±0.05 cm3) of a solution into a conical flask. Another solution that reacts with the solution in the conical flask is carefully added from a burette until it has all exactly reacted. This is called the end point of the titration (or equivalence point of the reaction). There needs to be a way of knowing when the end point is reached. An indicator may be needed. Often a titration is repeated until successive titres are within 0.1 cm3.
How does a pipette works?
A pipette is a device used in a lab to relocate fluids. A person must squeeze the air out of the top, place the end in a substance, release the top, and the fluid will rush to the top of the pipette.
What is a pipette?
A pipette is used to accurately measure the volume of a liquid in the laboratory. In the school laboratory the pipette is usually a glass bulb with a glass tube on either end. There is a line on the tube to indicate how high to fill the pipette to measure the required volume.
What do you call the buglike thing on the end of a fishhook?
It is the BAIT.
What is the purpose of a cotton plug at the end of a sterile pipette?
It functions as a barrier to overfilling.
Why is the Pipette is the most accurate laboratory apparatus used in measuring the volume of liquids?
Pipette is the most accurate apparatus because it is fixed apparatus and its answers can come in both either single graduated or multiple graduated. it has tap sort of thing at the end which makes it more accurate! thankyou -Fatima Bajwa
When did Let's Call the Whole Thing Orff end?
Let's Call the Whole Thing Orff ended on 1972-05-20.
What is pipette made up of?
A pipette is either a glass or plastic narrow tube with a rubber bulb on one end. The idea is to put the open end into a liquid, after depressing the bulb. On releasing the bulb, a suction is formed and liquid is drawn up the tube. The pipette can then carry the liquid to another receptacle. On squeezing the bulb, the liquid is deposited into the new receptacle.
What is a pipette safety bulb?
A pipette bulb is the rounded part of a pipette which you squeeze the air out of, then release to draw liquid into the pipette. If you are using a calibrated glass pipette, it will be a separate piece made of rubber which is fitted to the pipette. If it is a simple plastic pipette then the bulb will be made of the same semi-transparent plastic, and the pipette will all be one piece.
How do you measure the volume of liquid in a pipette?
Normally either a vacuum bulb or a syringe-type device.
How do you use dropping Pipette?
An Epppendorf pipet is what is called a constant volume pipet. It consists of a barrel with a a push button on one end and a stem on the other. You attach a single use disposable tip to the stem. Some models allow you to set the volume to be dispensed, some are not adjustable. In use, , you depress the push button to the first stop, insert the tip into the liquid to be pipetted, and release the button smoothly to draw up the liquid. Then, transfer the pipet to the receiving vessel and depress the button past the first stop to the second stop, this dispenses the liquid and blows out the last drop to insure accuracy, then discard the tip before the next use. Every time you draw up liquid, you get the exact same volume, with very high precision.
How do people prefer to end relationships?
Most people prefer to end a relationship by text. Everyone knows that's not the right thing to do. So, either by phone call or in person.
What do you call the plastic tip at the end of a shoestring?
The plastic thing the tip of shoestring is called AGLET but it is forgotten since 1920!
