Hydrochloric acid

There are several physical and chemical methods, of which the simplest method involves the reduction of the metal salt AgNO3 by NaBH4 in water. Wiley and his coworkers synthesized three different shapes of silver nanoparticles using chemical method, in which ethylene glycol used as both solvent and reducing agent [5]. This group synthesized cubic silver nanoparticles by reduction of silver nitrate (AgNO3) with ethylene glycol in the presence of Polyvinylpyrrolidone (PVP) and HCl. After synthesis…

1. Fit the stem of a funnel inside the short end of a straw. Push the funnel in as far as it will go. Securely tape the straw to the funnel. Repeat for the second straw and funnel. 2.Push a straw-funnel assembly through the hole near the bottom of each container so that the funnels are on the inside of the containers. Adjust the straw-funnel assemblies so that the funnels face up. Put some modeling clay around the hole, on the outside of the container, to hold the funnel in place. 3. Start by…

More conjugated compounds absorb higher wavelengths/lower energies because as the wavelength increases the HOMO/LUMO gap (ΔE) decreases which is due to the compression of multiple molecular orbitals (ψ). According to Klein, the Ketchup stain (lycopene) on a shirt and upon application of bleach (NaClO), it breaks lycopene’s conjugation, therefore causing a decrease in conjugation; which directly correlates to the stain no longer being visible to the eye but when illuminating the shirt with…

and CO2, there is a compromise of lactate acid and acid- base balance from a high intensity exercise. The factors that avoid this change in the homeostatic limits are PO2 and PCO2, and pH. Which are maintained form increase in oxygen delivery to the alveoli and CO2 exhalation from the body (King, 2018). Acid- Base balance are affected by hydrogen ions which are formed from the lost of electrons. When a molecule releases hydrogen ion it is determined as acid, and when it is bind with hydrogen ion…

Introduction Ascorbic acid is a form of vitamin C that is used by the body as a means of promoting healing of cuts and wounds, as well as boosting the immune system and as such aiding in the fight against infections. Ascorbic acid does not occur naturally and is formed by carrying out a variety of chemical reactions on corn syrup. The chemical formula for ascorbic acid is C6H8O6 and is similar to glucose which has a formula of C6H1206, this closeness in structure allows most animals (excluding…

sugar out of the blood.  When you drink a caffeinated soft drink to quench your thirst, you will actually become thirstier 11/05/2014 SOFT DRINKS & ITS HARMFUL EFFECTS 18 19. KIDNEY FAILURE: Drinking large amounts of soft drinks containing phosphoric acid may be especially harmful. Having poor kidney function can lead to unusually high levels of phosphorous in your blood that lower calcium levels, increasing your risk of bone disease and brittle bones. That cola beverages can increase the…

Ethyl vinyl ether was used to protect –OH on glycidol based on a literature reported protocal.59 In a typical procedure, 0.675 mol glycidol and 200 mL ethyl vinyl ether were loaded in a round-bottom flask, to which 1.25 g TsOH was then added. The reaction was allowed to proceed at room temperature (RT) for 3h. The resulting mixture was then purified by washing with 100 ml saturated aqueous solution of NaHCO3 for 3 times. The organic layer obtained was dried by MgSO4. After filtration of MgSO4,…

Ferhan Abdullah Thursday, 09 November 2016 Experiment 7 The Separation of Three Organic Compounds by Acid-Base Reactions and Liquid-Liquid Extractions Abstract: The purpose of the experiment was to isolate the three mixtures 9-fluorenone , benzoic acid and benzocaine by the liquid-liquid extraction method and the acid-base reaction technique. Using the acid-base reaction technique, the acid and base are neutralized, producing salt and water. By using the liquid-liquid extraction method, two…

Experiment #9- Acid Base Titrations II: Potentiometric and Indicator Titrations Introduction- In this experiment, the reactions of three different acids with a strong base are studied by observing how the pH of the solution changes as the titrant is added. A plot of pH versus amount of titrant added will be constructed. Such a curve is called a pH titration curve. The equivalence point of the reaction will be determined from an analysis of the pH titration curve, and by the use of acid-base…

Tirupur- 638604, India 3 Department of Chemistry, Sriguru Engineering College of Technology, Tamil Nadu, Coimbatore -641110, India Correspondence should be addressed to S.Aejitha ,aejitha_subbaian@yahoo.co.in ABSTRACT The inhibition efficiency of an acid extract of Antigonon Leptopus used as corrosion inhibitor for mild steel in 1M HCl medium is inspected by weight loss, temperature and electrochemical studies in the presence and absence of extract . The polarization studies…