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What is the role of the porcelain chips in the flask?
to distribution the temperature in round bottom flask
What does a flask look like?
A flask is a bottle- usually made of glass, that has a rounded body and a narrow neck. Wanna see a picture? http://www.mdhb.com/images/erlenmeyer_flask_1000ml.jpg
What is flat bottom flask?
A flat bottom flask would be an Ehrlemeyer flask, which is used quite a lot by chemists.anf
Why do cells adhere to the tissue culture flask?
Cells adhere to the tissue culture flask because the surface of the flask is typically treated with a material (e.g. collagen, gelatin, or fibronectin) that mimics the extracellular matrix, providing a suitable environment for cell attachment. This adhesion is important for cell growth and proliferation, as well as maintaining cell morphology and function in vitro.
Gas is contained in a 125mL flask The actual volume of the flask is 131.5mL What is the volume of the flask in L?
Volume of the flask = 131.5 mL - 125 mL = 6.5 mL = 0.0065 L
What will happen after some time when the empty flask was heated over the burner?
nothing , after a while the flask material will break down
What is a flask made of?
it is made of plastic
How is heat loss by convection prevented in a thermal flask?
There is a layer of vacuum which surrounds the flask, then the inside is covered by shiny material which will reflect the heat back into the flask, there are two lids, and there is an indirect gap of about 0.01mm.
What is the role of the porcelain chips in the flask?
to distribution the temperature in round bottom flask
Where can you get an erlenmeyer flask from?
From the scientific material sellers. eg:Borosil,Thermo scientific etc
What is a thermos flask made of?
out of steel
What were the first material thermometers made out of?
the first material thermometer by Gelileo was made up of simple apparatus, which consists of a sealed beaker in which a long tube with both open ends was connected vertically over the beaker. the top of the tube is covered with a round flask with coloured ammonia filled in the setup. when there is a difference in temperature the ammonia rises and sprays like a fountain into the round flask at the top of the setup.
What is a vacuum flask made of?
A vacuum flask is a type of flask that aims to stop all three forms of heat transfer. Conduction, convection and radiation. A vacuum flask prevents conduction by making a vacuum between the inside and the outside layer of the flask, so that the only solids that touch are the lid and the main body of the flask. This means the amount of conduction that occurs is minimised. One major drawback though, is when the hot water transfers heat with the cold air inside the flask, then the hot air transfers heat with the cold lid, and then on the likely chance that the lid is hotter than the surroundings, the lid transfers heat with the air molecules around it. This means that a considerable amount of heat is lost to the surroundings. The only way convection can occur is by the hot liquid or solid transferring heat with the trapped air inside the flask, although this only affects the temperature of the water by a bit, because most of the liquid condenses again. The flask is made so that radiation is reflected back of the sides, which is made of a shiny material. Also, the flask is not transparent; it is made of an opaque material, usually plastic or metal. The only way radiation can escape, is by the lid being taken off.
What is the scientific principle of making thermos flask?
thermos flask actually works on the principle of insulator. air is trapped between 2 walls of the flask. air being a bad conductor of heat traps it between the walls. this keeps the material in the flask hot for a longer period.add. Actually, usually there is a vacuum between the two walls of the flask, for this is a better insulator than air. hence the name 'vacuum flask'.
What is the main cause of heat loss in a normal thermos flask?
The main heat loss in a good thermos flask, is due to heat conducted through the material. (Glass or Stainless Steel). There should be little heat lost through the vacuum of the flask.
Will acidic drinks ruin a pewter flask?
Yes. They can also be dangerous in an old pewter flask as pewter was once made with lead. Steel and glass are the best materials for a flask.
After titrating 0.1 M HCl with 0.1 M NaOH what material remain in the flask?
NaCl and water
