Iron Filings Lab Report

My unknown organism #6 is Morganella morganii, which is a gram-negative bacillus rods commonly found in the environment and also in the intestinal tracts of humans, mammals, and reptiles as a normal flora. (3, 5) This bacterium Morganella morganii, was first discovered in the 1906 by a British bacteriologist named H. de R. Morgan. (2) Despite its wide distribution, it is an uncommon cause of community-acquired infection and is most often encountered inpostoperative and other nosocomial settings. (2, 3) Morganella morganii infections respond well to appropriate antibiotic therapy; however, its

Because salt dissolves in water, we added water to the salt and sand mixture. Sand is insoluble in water making the sand not dissolve. The mixture containing of sand and salt water was then filtered with filter paper. The filter paper allowed the salt water to pass through because it is a liquid while not allowing sand to pass through because it is a solid. The salt water was then collected in a pre-weighed 250-mL (67.88 gram) beaker while the sand and filter paper was put in a pre-weighed (52.02 gram) 100-mL beaker. The water was then evaporated because we left both beakers to dry overnight.

Bacteria are ubiquitous; they can be found on the skin, in the soil, and inside the body. Because of the very nature of this ubiquity, it is important to be able to determine between different strains of bacteria. An example of this is determining the causative agent for a disease so that the patient will be treated with the appropriate antibiotics. It may be important to determine the bacteria in a certain region, because like with enteric bacteria, it is normal to find them in the digestive tract as they are in a symbiotic relationship with our bodies in this area; however, they also cause opportunistic infections in places outside of the digestive tract to our detriment, such as with a urinary tract infection. Some strains of bacteria are common to nosocomial infections, and identifying these bacteria as such helps create the guidelines for healthcare workers in antiseptic technique. All of the morphology and characteristics of each strain of bacteria help us to better understand the role of bacteria in the body as well as helps us understand how they can cause illness, and what treatment regimen to set in place. In lab this semester, a sample of unknown

The Process of Identification of an Unknown Bacteria Entering the medical field, it is important to understand the way bacteria function and grow. Understanding bacteria allows nurses and doctors to have a clear understanding how to fight bacteria and prevent major infections. The study of microbiology requires more than an academic understanding but also a hands on understanding of lab techniques and aseptic techniques. Lab methods that have been learned throughout this semester will be used to identify the unknown bacteria.

Silver nitrate is corroding your copper pipes. Would running sodium chloride through your water system stop the corrosion from happening? What are ways to prove the presence of silver nitrate in your system initially?

As seen from the relatively small percentage error (1.49%) of my experimental result when compared to

The eggs were each individually placed in one of the beakers and were taken out and weighed every 15 minutes for 60 minutes. Weighing the eggs helped to test the process of osmosis by finding out the mass before and after soaking in water, this will dictate whether water has moved in or out of the egg.

Each pile (equal amounts) of salt goes in a jar. Three jars (one of each temperature) gets a spoon. With the spoons, stir the contents of the jars. Then, take the jars without spoons and swirl them around. Time the swirling or stirring from when you start to when the salt is completely (or as close as it can get) gone.

Sludge Lab Hypothesis - I comprehend that the mixture is a combination of alcohol with water & sand with iron filings, my reason for thinking this is i smelled the aroma of alcohol & i also thought that the alcohol must include a percentage of water molecules. I believe the insoluble compound is sand & iron filings, my reason for thinking this was i could physically see the substances and i used a magnet to tell that there's iron in it. Procedure I would first filter the liquids from the solids from the mixture the procedure is shown in figure 1. figure1.

. Iron is a component of certain proteins, essential for respiration and energy metabolism, and as a component of enzymes involved in the synthesis of collagen and some neurotransmitters. Iron also is needed for proper immune function. Symptoms of Defiency is shortness of breath, fatigue-tiredness, depression, hair

Introduction Irons chemical symbol eB comes from the Latin word ferrum which means iron. Iron is the second abundant metal and makes up about 5.6% of Earths crust. Iron has the atomic number of 26 and a mass number of 55.845. It’s melting point is 1538°C and its boiling Point is 2861°C. It has a density of 7.874 g/cm³.

Meanwhile for the experiment proper, the following steps will be discussed with more specific details on how the objectives and goals of the experiment will be achieved: Primarily, the two filters will be created first using the 2 plastic bottles, coffee filters, and sediments (1 cup each). In creating the pebbles filter, one of the two plastic bottles will be used and its bottom part will be cut to create a holder for the sediment. After doing so, using the small screwdriver, create a small hole on the bottle cap that is tightly attached to the bottle. Then insert the coffee filter into the bottle and make sure it is in the bottom most part. Now that this is done, one can now fill up the bottle with 4 inches (66 ml) of the pebbles. As for

Get all the ingredients and Materials. Add the iron,coconut,sand and salt into a beaker. Get the magnet and hold over the iron pieces close enough to pick them up and once all the iron pieces are picked up put them aside. Add 100mls of water to the beaker and stir the water and the substances with the stirring rod wait for the coconut to float up to the top and then use the spatula to scrap up the coconut, put aside also. Now all we have left is sand and salt now we wait for the salt to dissolve. When all the salt has dissolved. We need to get the filter and filter paper and fold how is requied then put into a conicail flask and slowly tip with mixture onto the filter paper, When is all filtered you will get all the sand filtered out

5. The weight of each size increment was determined by weighing the residue contained on each sieve. This has be done in a cumulative fashion by starting with the smallest, particles in the bottom pan. After this weight has been determined, the next larger particles was added into the same pan and the cumulative weight was determined.

Stir a spoonful of sample salt in water. Chalk will make the solution white and other insoluble impurities will setlle down.