Traditionally, for most class work, one simply folds the round filter paper in half and then in half again, forming a quarter circle. Then you spread open 3 of the loose edges versus one loose edge to form a cone. The cone is then inserted in the funnel and wet down with distilled water until a stream accumulates in the long tube of the glass filtration funnel. This stream tends to accelerate filtration by causing a minor gravity pull or vacuum. True lab purists will add the additional steps of making the second 'half' fold in such a way that it is not quite 50% or equal. Then snipping with scissors or tearing about a quarter inch off the outer corner of the shorter segment. This corner goes on the outside of the 3-loose-edges side of the cone. The theory is that this creates a slightly broader cone which will make better contact with the walls of the funnel thus better retaining the vacuum.
Here's the general way for a regular funnel (not for a Buchner funnel): Take the circle of filter paper and fold it in half. Fold it in half again so that you've got a quarter-circle of filter paper. Now squeeze the straight edges together slightly and spread the layers to make a cone; you should have one layer of paper on one side of the cone and three on the other side. Pop it into the funnel. It may help to wet the funnel with solvent first so that the paper "sticks" a little bit. For a Buchner funnel, you just set the circle of filter paper flat in the funnel without folding.
easy its a rectangle i had this question on my science homework
Fold the circle paper in half and half again so you have a quater then to open it out put 3 sides to 1.
- the exposed area is larged
- the drain of filtrate is easier
- the exposed area is larged
- the drain of filtrate is easier
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So the liquid doesn't damage the lenses
A stirring rod is placed above a beaker to help guide the liquid while pouring and provide better control for the person pouring the liquid. Also it does make missing the small funnel harder, and thus reduces the errors of losing filtrate or introducing uncertainties.
You're probably thinking of a filter, lens or gel. All of these can be used to unify the color of light which passes through them, allowing certain frequencies (or colors) through while blocking others as they are emitted from the source (ie a bulb) or before being picked up (like by a camera lense)AnswerI believe the answer is Filter.
Graphite.
Chemical energy
it has to be placed in alcohol first because lipids are soluble in alcohol but not in water.
During the civil war,what Virginia colonel was commander of a prison before being placed in charge of the CSA bureau of conscription, then fled to Europe when lee surrendered
a funnel helps you pour a liquid or powder into a small opening withut spilling it. it can prevent chemicals from being wasted
The sausage rolls being placed seam side down will make them look nicer. By the seam being placed down before baking, the roll itself will maintain its desired shape through the baking process. If the seam were placed facing upward, then the roll will puff up with the form being deformed.
Before cans, jars, and freezers. Food was preserve by being salted, being placed in oil, or with vinegar.
That depends on the container; if the mouth of the container into which the acid is being poured is large enough, you can just pour, with no additional equipment being required. If the mouth is too small, you can use a funnel. Since you are pouring acid, you would not use a plastic funnel, but an aluminum funnel would work.
A sighting of a funnel cloud can prompt a tornado warning. If the funnel cloud reaches the ground it becomes a tornado, and can be very destructive to human property and pose a threat to the lives and well-being of the people in its path.
So the liquid doesn't damage the lenses
You will be placed in a Developmental Math class before you can take any other credit math class. You can retake the test to avoid being placed in one of these classes.
Most likely so the glass will not crack as it expands as a result of being heated by a hot solution being poured into it.
Funnel-web spiders come from Australia and Tasmania. See the Related Link. ------------------ ???... Dude, use your head. They're called Sydney Funnel-Web spiders, obviously they come from Sydney, Australia & the islands around it (Tasmania being one of them).
Being that the capacitor appears as a short during the initial charging, the current through the diodes can momentarily be quite high. To reduce risk of damaging the diodes, a surge current limiting resistor is placed in series with the filter and load.