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What is contained in a clean dry test tube?
If a test tube is clean and dry, then there should be nothing in it.
What is contained in the top part of an inverted test tube?
That depends on the circumstances. If you just pick it up and invert it, it's air. If you fill it with water and invert it in water then it's water. If you use it to collect a gas, it is the gas you are making.
When heating a liquid sample in a test tube the mouth of the test tube should be?
It depends on what you are doing, you should be sure to follow instructions carefully and be sure to take proper safety precautions
Why should cotton plugs of culture tube be always dry?
cotton plug on culture tube should be kept dry always to avoid contamination of the media by microorganisms which are suspended everywhere.
What are the main uses for tube heaters?
Tube heaters can be used in many different environments and places that need to be heated. Tube heaters can be places in walls or flooring in order to keep a room warm.
Collection tube containing an anti-coagulant inverted how many times?
4-8
Why U-tube is inverted in inverted differential manometer?
when the fluid is flowing on the pipe which is lying on the ground then we cannot install ordinary manometer to measure the pressure, that's why we use inverted u tube manometer in such case.
What happen when mercury used in inverted manometer?
When mercury is used a manometer fluid and the manometer tube is inverted it will measure the small pressure difference in liquids. This is a tool used by scientists.
Inverted U-tube differential manometers?
Inverted U-tube manometer is used for measuring pressure differences in liquids. The space above the liquid in the manometer is filled with air which can be admitted or expelled through the tap on the top, in order to adjust the level of the liquid in the manometer.
Why doesn't the reaction begin immediately after the gas collection tube is inverted?
wieners fly off the walls and into pigs mouths
How many times does the tube go under the river thames?
5
How could a sample gas be collected at the positive electrode when using electrolysis for copper?
Place an inverted test tube over the elctrode
What is the meaning of salt bridge in chemistry?
a salt bridge is usually an inverted glass u tube that connects two beakers together
What are the product of lactate fermentation?
it is called lactose fermentation and it yields lactic acid + gas .....the acid can be recognized by chemical indicator ( Bromocresol) and the gas can be recognized my trapping the gas in an inverted tube ( Durham tube ).
If an inverted tube containing air is placed above a test tube of hydrogen why would the tube of air give a positive test for hydrogen after a few minutes?
This would happen because of the process of diffusion. Hydrogen molecules would move from the hydrogen test tube where they are highly concentrated to the air test tube where their concentration is low.
How many times to invert anticoagulant tubes?
8 times unless its a lt blue tube which is 4 times
A cardboard tube has diameter 4 inches About how many inches of tape are needed to wrap around the mouth of the tube 3 times?
The answer is 38.
