0
A cotton wool is used to plug a flask instead of a rubber bung because a rubber bung doesn't allow any gas exchange between oxygen and carbon dioxide. A cotton wool will allow them to leave and enter the flask during an experiment.
What else can I help you with?
What is main disadvantages of using metal instead of glass in a vacuum flask?
becuase metal conducts heat
What is the main disadvantage of using metal instead of glass in a vacuum flask?
becuase metal conducts heat
Can you make cotton candy using regular syrup instead of corn surrup?
yes
What are the dangers of using rubber tracks, instead of metal?
The only downside to rubber tracks is that they can only carry vechilcles up to 30 tons.
What are the advantages of using rubber mulch in one's garden instead of wooden mulch?
There are many advantages of using rubber much instead of wooden. Some of these are: it lasts a lot longer than wood, and in certain situations; like playgrounds, it is much safer.
What is bias ply?
Instead of using steel belts (the way a radial tire does), the tire is entirely rubber.
Why do you keep the flask in dark during standardization of na2s2o3 using k2cr2o7?
why flask keep in dark during standardization of na2s2o3 using k2cr2o7
Is using a rubber band instead of a string on a mousetrap car better?
Using a rubber band instead of a string on a mousetrap car can be more efficient because it provides more energy due to its elasticity. The rubber band can store more potential energy when it is wound up, leading to a more powerful release and better performance for the car.
Which theory did Pasteur disprove by using boiled beef broth and a flask?
Louis Pasteur disprove the theory of spontaneous generation by using boiled beef broth in a flask. He demonstrated that, by boiling the broth and sealing it in a flask, no microbial life developed, thus showing that microorganisms do not arise spontaneously from non-living matter. Instead, he concluded that they come from external sources, such as air, which must contain microbial life. This experiment was pivotal in establishing the principles of biogenesis and germ theory.
Can you use cotton material instead of flannel to make rag quilts?
Yes, you can use cotton material instead of flannel to make rag quilts. Cotton is a versatile fabric that can provide a nice aesthetic and durability. However, flannel is often preferred for its softness and warmth, so using cotton may result in a different texture and feel. If you choose cotton, consider pre-washing it to prevent shrinkage and ensure a good fit after the quilt is completed.
A 0.200M solution of sodium carbonate Na2CO3 is made by dissolving 5.30g of the solid in water and making up the mark in a standard flask What volume must the flask be?
To find the volume of the flask, first calculate the moles of Na2CO3 using its molar mass. Then use the molarity and moles to find the volume using the formula Molarity (M) = moles/volume (in liters). The volume of the flask needed is then the inverse of the molarity.
Do and don't's while using Volumetric Flask?
When using a volumetric flask, always make sure to fill it to the calibration line for accurate measurements, and use a pipette to add reagents for precision. Avoid shaking the flask vigorously, as this can cause bubbles that may lead to incorrect volume readings. Do clean the flask thoroughly before use to prevent contamination, and do not use it for mixing solutions unless the volume is stable.
