Hydroxide

Using scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS) images and spectra were obtained from various samples of silica and platinum on silica. Each sample contains unique structures which were prepared by etching the surface of silica in different conditions. A scanning electron microscope is a type of electron microscope that produces images of topography and composition by scanning a sample with a focused beam of electrons. Samples can be observed in high vacuum,…

Environmental Issues Waste water generation: The wastewater produced during the chemical processes contains high concentration of chemicals such as bisulfites, sodium carbonate, sodium hydroxide, sodium sulfide, chlorine dioxide, hydrochloric acid, calcium oxide etc which is potentially unsafe to purge directly into the environment. Sludge by waste water treatment: The significant solid wastes such as lime mud, lime slaker grits, green liquor dregs, boiler and furnace ash, scrubber sludges,…

Evidence-Based Interventions to Manage Chronic Constipation in Children Anna Marie McMillan Frontier Nursing University Abstract Constipation accounts for approximately 3% of pediatrician visits and about 10-25% of referrals of pediatric gastroenterologist. Rome III criteria is utilized in the study to determine eligible participants. Organic constipation is related to a physiological cause, patients suffering from organic constipation were not included in the study. Patients with…

Here are some differential diagnoses for perineal itching and ways to determining the diagnosis. For example, Litmus testing for pH, wet mount from a pap smear, K hydroxide (KOH) preparation and whiff test, cultures for fungi and trichomonads can be used to determine if the diagnosis is Vaginitis, candida albicans (monilia); Vaginitis, Gardnerella/bacterial (mix); Vulvovaginitis, Fungal (Diagnosis of, n.d.). According to Neistein (2008), laboratory tests, clinical findings, signs, and symptoms…

The trend of our data collected during the experiment was a weak correlation. This is because two variables have increased whereas the other two variables have decreased (Simpson, 2013). As shown in the graph in the results section, it can be seen that the times 20 seconds and 80 seconds are above the trend line and 40 secs and 60 secs are below the trend line. This therefore makes it a weak correlation, as there is no significant trend that can be seen that shows it is a positive trend line.…

thiamine hydrochloride to a 25-mL Erlenmeyer flask. Dissolved the solid in 0.45 mL of water by swirling the flask. Add 3.0 mL of 95% ethanol and swirl the solution until it is homogeneous. To this solution it was added 0.90 mL of an aqueous sodium hydroxide solution and then it was swirled in the flask until the bright yellow color faded to a pale yellow. Students then swirled the contents of the flask until it was homogeneous. Stopped the flask and was let to stand in a dark place for 2 days…

oxygen and the test had been in progress fourteen days at the time of the fire. The odor removal system used activated charcoal and the Carbon Dioxide Removal System had an aluminum cover and consisted of a mixture of 80% calcium hydroxide and 20% barium hydroxide. A review of one unmanned and four manned experiments in which there were fires was undetermined. They were believed to be electrical in nature. The only fatalities occurred in the two accidents in which there was a flash fire. In…

One of the most viral videos on Youtube are parents giving their children a lemon to suck on. The hysterical faces the children make is a response to the amount of acidity they are tasting. Acids and bases can usually be defined by your senses. For example, edible acids usually have a sour taste(4). Bases are more bitter-tasting and unstable(4). But, your senses are not the only ways you could detect acids. Sometimes you have to use measurements like the pH scale to detect if a substance is…

acid, RCO2H) and the bottom layer contained the neutral organic phase (RZ). The (RCO2H) was acidified by the addition of hydrochloric acid. After solution had dissolved, it was then placed into a separatory funnel. Approximately 20mL of 1.0M sodium hydroxide solution was added into the separatory funnel where an acid base reaction took place creating layers within the funnel. Inverting and swirling the mixture for about 10 to 20 seconds would help achieve adequate extraction of the organic acid.…

The pH scale is really a scale that shows the amount of free hydrogen and hydroxide ions in water. The pH scale starts at 0 and goes to 14. On the scale 0 to 6 means that the water is acidic. Water on a scale of 7 means that it is neutral and water on a scale from 8-14 means the water is more alkaline or base like. Scientist around…