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Why was it important to determine the mass of the air in the flask?
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∙ 13y ago
to make happy
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Do air particles change size or shape when air is removed from a flask?
No.
How did Louis Pasteur experiment differ from lazzaro spallanzani experiment?
Instead of sealing the flask in the experimental group after boiling, Pasteur used a flask with a curved neck, which allowed air inside and outside the flask to mix but prevented microorganisms from entering the body of the flask.
Why are gust fronts produced often by air mass thunderstorms important to monitor?
The gust front of a thunderstorm, including an air mass thunderstorm, can produce strong, potentially damaging winds.
Why do you use inverted vaccume flask in heat release and pea germination experiment?
Hey! So, basically, the flask is inverted so that air (oxygen) can get in, but bacteria cannot.
Which is produced when warm air mass pushes a colder air mass?
An Warm air mass
How would I calculate the mass of air in an empty flask?
From the volume of the flask, and the density of air under the conditions in the room, you can calculate the mass of air. The density of air varies with pressure, temperature, humidity, etc. At sea level and at 15 °C air has a density of approximately 0.001225 g/ml, so under these conditions, a liter flask would contain (1000 ml)(0.001225 g/ml) = 1.225 g of air.
Why does the egg go in to the flask when heated?
When an egg is heated, the protein present within it(the egg white), called albumin gets denatured. This is because protein structures break at high temperatures. As a result, the liquid albumin forms a thick white mass.
If you cool a flask to -200degrise what would happen to the air?
I the flask was sealed, the air inside of the flask would take up less space and as a result, cause a drop in pressure inside the flask.
Sam filled a 500ml conical flask with 200ml of water Then he attached a 100ml syringe full of air to the conical flask and pushed the plunger inwards What was the volume of air in the flask?
The volume of air would remain the same but the pressure of the air increased.
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'.
How does a thermos flask reduce conduction?
There is air between the inside and outside of the flask.
Do air particles change size or shape when air is removed from a flask?
No.
How a thermos flask minimizes energy losses from convection?
As the flask is closed air tight, no convection current is possible.
Why did the water rush into the erlenmeyer flask when it was submerged in the cold water?
1. When the flask was placed into the cold water, the colder air molecules in the flask move slower, putting out less pressure. With the decrease in air pressure inside the flask, the now greater pressure outside pushes water into the flask until the pressure inside equals the pressure outside.
What is the purpose of the mass air flow sensor?
It determines the Mass of the Air Flowing into the engine. The engine computer must know how much air is flowing into the engine to determine how much fuel to inject into the cylinders to get the appropriate fuel-air mixture.
When all the liquid has evaporated the vapor totally fills the florence flask and exerts a pressure equal to the atmospheric pressure why?
I'm guessing you are analyzing an experiment where you are determining the molecular mass of an organic liquid. You heated the flask and the liquid evaporated filling the flask, but escaping through a small hole in the covering. 1. Gases always fill the container. So, if the liquid evaporated and formed a gas (vapor), it filled the flask, 2. The pressure on the outside the flask is air pressure. since the vapor isn't pushing off the cover, the pressure is not higher than the air pressure. But since the extra escaped, it cannot be less than the air pressure. Therefore, it is the same.
What are two important properties of air?
There are more than two properties of air and all of them are important. Properties of an air mass include pressure, density, and temperature.
