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Why must the NaOH be removed from the burette immediately after titration?
Leaving NaOH in the burette can lead to errors in subsequent titrations due to contamination. It can also react with moisture in the air, causing the concentration to change over time. Additionally, it is good laboratory practice to clean and dry equipment after use to prevent any potential issues in future experiments.
What is is the use of burette holder in chemistry lab?
A burette holder is used in a chemistry lab to securely hold a burette in place during titration experiments. It prevents the burette from tipping over or falling, ensuring accurate and precise measurements of the volume of liquid being dispensed.
When filling the burette why must the solution fill the tip of the burette below the burette tap-and contain no air bubbles?
Filling the burette to the tip ensures that there are no air pockets trapped within the solution, which could lead to inaccurate measurements when dispensing the solution. Air bubbles can disrupt the flow of the liquid and cause incorrect readings as well. Therefore, ensuring the burette is completely filled without any air bubbles allows for precise and accurate measurements to be taken.
Why is it necessary to rinse the burette with sodium hydroxide before you completely fill it up?
Before a burette is used, it needs to be cleaned. During the cleaning process, usually, water is introduced into the burette. Be the water clean or not, if the burette is then used without rinsing it with the solution that it is going to be filled with, the result of that analytical exercise will not be precise and accurate. The reason is that water residue in the burette would dillute the solution when it's filled in the burette which would make it impossible to determine the exact concentration of the solution moved by the burette. By rinsing and re-rinsing the burette several times with the solution it is going to be filled with, residue water from the cleaning process would be successfully removed from the burette as are other leftover substances from the cleaning process. This practice is quite important as basic analytical technique.
What are the two requirement's for glue to work?
It must be at a suitable temperature. The surfaces to be glued must be clean and grease free.
Why must the NaOH be removed from the burette immediately after titration?
Leaving NaOH in the burette can lead to errors in subsequent titrations due to contamination. It can also react with moisture in the air, causing the concentration to change over time. Additionally, it is good laboratory practice to clean and dry equipment after use to prevent any potential issues in future experiments.
What is is the use of burette holder in chemistry lab?
A burette holder is used in a chemistry lab to securely hold a burette in place during titration experiments. It prevents the burette from tipping over or falling, ensuring accurate and precise measurements of the volume of liquid being dispensed.
What aftercare for thoracotomy patients is prescribed?
It is a major procedure that often involves a hospital stay of five to seven days. The skin around the drainage tube to the thoracic cavity must be kept clean, and the tube must be kept unblocked.
When filling the burette why must the solution fill the tip of the burette below the burette tap-and contain no air bubbles?
Filling the burette to the tip ensures that there are no air pockets trapped within the solution, which could lead to inaccurate measurements when dispensing the solution. Air bubbles can disrupt the flow of the liquid and cause incorrect readings as well. Therefore, ensuring the burette is completely filled without any air bubbles allows for precise and accurate measurements to be taken.
Why is it necessary to rinse the burette with sodium hydroxide before you completely fill it up?
Before a burette is used, it needs to be cleaned. During the cleaning process, usually, water is introduced into the burette. Be the water clean or not, if the burette is then used without rinsing it with the solution that it is going to be filled with, the result of that analytical exercise will not be precise and accurate. The reason is that water residue in the burette would dillute the solution when it's filled in the burette which would make it impossible to determine the exact concentration of the solution moved by the burette. By rinsing and re-rinsing the burette several times with the solution it is going to be filled with, residue water from the cleaning process would be successfully removed from the burette as are other leftover substances from the cleaning process. This practice is quite important as basic analytical technique.
What does the term 'hygienically clean' mean?
its means that we have to a good sanitation and must be cleaned the the kitchen.
What are the things that you must keep in mind in preparing food?
Good seasoning-the right amount of salt, pepper, paprika or spices Good cooking: Make sure it is not raw or burned. just right. Clean: clean vegetables etc Good presentation: Good portions and a nice clean presentatin
What is required for good furnace maintenance?
For one to maintain a good furnace, one must: clean the furnace regularly, replace or clean the filter, service the furnace once or twice a year, make sure that the furnace is kept clean and dry to name a few.
How old do you have to be to adopted a child in Sacramento ca?
you must be over 21 and have a good job and a clean place to live
Should the catheter drainage bag must be lower than the bladder but not on the floor?
true
What characteristics must soil have to help plant growth?
Soil must have good drainage, proper aeration, sufficient nutrients, and a balanced pH level to help plant growth. Additionally, the soil should have a healthy population of beneficial microorganisms to support plant health.
What are the advantages and disadvantages touch screen?
It puts your finger in front of your eye - good. Must clean the screen to see well - bad.
