"Molecular Weight and the Mole." Molecular Weight.Osmosis Lab Report.
This technology was used mainly in eastern countries, which were lacking a competent and reliable chemical industry. Hundreds of reports have popped up in Russia, China, Poland and Bulgaria detailing the successful use of magnets
to treat water.
Lacking any chemical means of softening the water, these countries used magnets to treat water for irrigation and industrial uses, as well as for personal use, where improvements of taste and faster drying were reported. Many attempts to explain the reasons for the observed effects were made without much success. Also methods of measuring the effects remained unsatisfactory.
In western countries the use of magnetic water treatment methods developed much more slowly. Water softening by chemical means was in general use and the difficulties of explaining and measuring magnetic effect on flowing water kept it suspect in western minds. In addition the chemical industry tried to discourage its utilization for obvious reasons.
However, the practical effects of magnetic water treatment were undeniable after prolonged use. A number of companies took advantage of the situation in western countries to market magnetic devices for water treatment, often equating magnets with magic or mysticism.
But there is no mystique in how magnets work to treat water problems. For example, the agriculturally oriented California State Polytechnic University in Pomona, Calif., Pioneered the reuse of irrigation water by using magnetic water treatment devices. The positive effects of magnets on water was confirmed in the 1980s through systematic research. With the scientifically sound knowledge of the processes involved, it was then possible to develop treatment devices with the newest permanent magnets. Also a quantitative method evolved for evaluating the effectiveness of the devices.
The new devices had a great effect on water treatment. Not only was the formation of scale totally eliminated, the removal of scale deposits in old water pipes could be accomplished in relatively short times. This had taken years with the older devices.
How can magnets do that? How can they provide nucleation centers in the water? The shortage of nucleation centers in the water is known to inhibit the capability of the water molecules to cluster around each foreign particle, rendering it unavailable as a nucleation center. The forces of the magnetic fields on those water molecule clusters is very weak. However the clusters vibrate in a number of ways. When they pass a number of magnetic poles at a certain velocity the periodic changes of the magnetic fields may coincide with one of the internal vibration frequencies of the water cluster. Resonance may occur and result in cracking open such a cluster. The formerly entrapped particle is set free, and the nearby mineral molecules rush from all sides to their nucleation center, where they form platelets.
The minerals that form the circular platelets do not have to crystallize on a
container wall. In turn, the number of hard crystals is reduced accordingly. This percentage reduction is the magnetic treatments effectiveness rating.
Since a method of quantitatively determining the effectiveness of the magnetic devices was developed, manufactures have been able to maximize their efficiency for industrial and residential use.
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Introduction: Human blood, at 0.9% salt concentration, is a little less salty than seawater, which has a salt concentration of about 35 parts.
is pleased to provide free access to the Classic edition of The Biology Place to Lab 1 Osmosis.
Osmosis Lab Report Hypothesis: Osmosis will occur THE DEPARTMENT OF PSYCHOLOGY GUIDE TO WRITING RESEARCH REPORTS The following biology lab report of osmosis.
WRITING BIOLOGY LABORATORY REPORTS.
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Traditionally, teachers use proof-of-concept experiments to demonstrate osmosis (e.g., grapes, chicken eggs, Elodea cells or dialysis tubing placed in hypertonic and hypotonic solutions). These experiments tend to be like cookbooks where, if students follow the steps, they will get the expected results. There is little to analyze and not much scientific process involved. Here we provide two versions of a proof-of-concept osmosis lab that can be done with the microscope (red onion and Elodea cells), along with suggestions for how students can use the methods learned in these labs to investigate their own original research questions. For example, they might compare different concentrations of salt or different types of solute (e.g., glucose, sucrose, fructose), or they could vary the temperature. For their data, they can take digital photos and measure the size of the cytoplasm before and after each treatment. Thus, rather than simply watching cells swell or shrink (an impressive, but subjective type of data), students will generate objective, quantifiable data that can be analyzed using Excel or statistics software.
osmosis lab report sample 4 preap - Biology Junction
(Be sure to have paper towels handy as some eggs may squirt!)
In my hypothesis I stated that if diffusion and osmosis across a selectively permeable membrane are related to the substance the membrane in submersed in, then an egg submersed in corn syrup will make it heavier as a result of water particles moving into the egg.
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around and it was 60.6 grams. This is definitely a huge difference from when the egg started out. Next when our egg was undergoing the hypotonic solution it's circumference was 20 cm. around and it was 90.8 grams. Now looking at our hypothesis and comparing it to our data, we can say that our data does support our hypothesis.
6. Osmosis is the diffusion of water, it takes water from a high concentration to a low concentration and it doesn't require energy at all. It is a form of passive transport. Water is being moved in and out of the egg. The substances will move to the area of low concentration and this will make the egg hypotonic.
7. Passive transport is when you are going from an area of high concentration to an area of low concentration, while active transport is going from low concentration to high concentration. Also active transport requires energy (ATP) to work while passive transport take no energy (ATP) to work. Also passive transport just goes with the flow of the concentration gradient while active transport goes against the flow of the concentration gradient.
8. Some errors that we had were that we dropped the egg on the table and it exploded everywhere.