Acid dissociation constant

2.1. C. tomentosum extract characterization C. tomentosum extract proximal composition is shown in Table 1. The relatively higher ash proportion in seaweed extract (SE) (aprox. 74%) could largely be accounted for by the lower moisture content, and probably due to a hygroscopic nature of the SE (Blanco-Pascual, Montero, & Gómez-Guillén, 2014). The values of TPC and DPPH radical-scavenging activity are consistent with literature (Andrade et al., 2013; Valentão et al., 2010) (Table 1). POD and PPO…

release tablet. UV spectrophotometric method was developed and validated to study drug release profile of Ketorolac Tromethamine and Phenylephrine Hydrochloride in immediate release tablet. Background: Ketorolac Tromethamine is a pyrrolizine carboxylic acid derivative structurally related to indomethacin. It is an anti inflammatory drug with analgesic and anti pyretic effect. Phenylephrine Hydrochloride is a sympathomimetic amine that acts predominantly…

Hopkins University. 2.2.2 SYNTHESIS OF SILICA GEL 2.2.2. a) USING KAOLIN BY-PRODUCT The synthesis process (D. Brahmia 2014) was carried out in two steps namely, (1)Metasilicate sol preparation and (2) Metasilicate destabilization with acid. In the first step, a mixture of sodium carbonate and sand were heated to 1000°C to form silicate. Sodium silicate formed in this study was prepared with different molar ratios, n, ranging from 1 to 4 as shown in Equation (2.1). The result…

For the first part, the qualitative polyphenol oxidase test (Table 1), we looked at 3 qualitative test tubes, where only test tube 2 turned orange since this tube had both the 40 mM dopa, the substrate and PPO enzyme extract. However, the test tube 3 did have a cloudy component because of the presence of PPO extract, but there was no color change. For a color change to occur, there needs to be a presence of both the dopa and PPO extract. Furthermore, we calculated the final concentrations of…

Pink Lips Naturally: Carrot and Beetroot Juice: The pink lips are carrot and beetroot juice. Carrot contains cancer prevention agent which helps in helping the skin. Peel the carrot skin and smash the carrot in the blender processor and take the carrot juice. Presently apply the carrot squeeze in the lips at whatever point you have time. Utilize this consistently for better outcomes. Beetroot likewise contains cell reinforcement so it additionally turns dark lips to blushing sparkly lips.…

Abstract: A one dimensional variable range hopping type conduction is observed in Poly (3,4-ethylenedioxythiophene): polystyrenesulfonate (PEDOT : PSS) films and the mechanism behind enhancement in conductivity in 3% dimethyle sulfoxide (DMSO) doped PEDOT:PSS film is due to the phase segregation of PSS on the surface and reduction of energy barrier between the conducting grains. Enhanced conductivity of PEDOT:PSS films and transparency more than 80% in the visible region makes PEDOT:PSS films…

Currently, Lagoa Vermelha has a depth of 1.0 m, with a small central core reaching a depth of 1.4 m, while Hohn et al. (1986) described a water column up to 1.70 m. In the present study, there was a greater tendency of accumulation of fine material, with little concentration of carbonates, at the highest depths. As expected, the accumulation of fine sediment was also associated with higher concentrations of organic matter. The results obtained in the bathymetric survey showed occurrence of a…

aids in digestion and helps to relieve digestive problems as well. • Stimulates hair growth: Mustard oil contains high levels of beta carotene and Vitamin A, iron, fatty acids, calcium and magnesium that stimulate the growth of hair and keep it healthy. • Improves heart health: Mustard oil is rich in omega-3 and omega-6 fatty acids which lower the cholesterol levels and promote the good cholesterol which in turn ensure that the cardiovascular health is maintained. Consuming mustard oil helps to…

Noor Diabi 11AA The life of hydrochloric acid in our stomach Chapter 14 section 1 25/04/2016 Ms. Sara Kassem Sharjah American International School Topic one: Discuss the role of hydrochloric acid in the digestion of foods. Point out how excess acid contributes to the discomfort known as indigestion. Explain how the stomach secretes a mucous layer, which protects it from being damaged by the hydrochloric acid it produced.  Hydrochloric acid (HCl) is a clear, liquid. Which is produced in…

Lignocellulosic biomass consists of cellulose, hemicellulose, lignin, proteins, acids, salts and minerals. Chemical composition is also one of the important factors for biofuel production. Moisture content of raw pearl millet biomass was (8 %) and ash content (6.27 %) was obviously higher than that the literature report of 3.8 % (Dhabhai et al., 2012). The proximate analysis of pearl millet biomass revealed that moisture (8±0.32%), ash (6.27±0.08%), total solids (92±0.14%), water extractives…