Sodium hydroxide

The substances found on the victims of the crash can be easily identified through simple math. You start by taking the percent values of each element found in the substance and changing it to grams, where one percent equals one gram, so that each element is out of one hundred grams. After finding the grams, you find out the moles of each element by multiplying the gram amounts by the conversion factor, which is 1 mol over the molar mass of the element you are dealing with, 12.01 grams for carbon…

3.2 N2O decomposition over Cs-doped Cu50Ce50Ox catalysts Fig.8. Conversion of N2O over different Cs-doped Cu50Ce50Ox catalysts Conditions: 2600 ppm N2O, balance He, 0.3 Mpa, GHSV-19,000 h-1. Fig.9. The T50 and T100 of different Cs-doped Cu50Ce50Ox catalysts The activities of the catalysts with different Cs content for N2O decomposition are shown in Fig.8, and the T50 and T100 (the temperature at which 50% and 100% conversion of N2O decomposition is achieved) are shown in Fig.9. It’s found…

The purpose of this lab is to calculate a value for Avogadro’s number and compare it to the actual value for Avogadro’s number. Avogadro’s number will be determined by setting up an electrochemical cell to oxidize a copper electrode. The results of the amount of copper deposited and the average current used will be used to calculate a value for Avogadro’s number. Techniques used: In this experiment, different techniques will be used to collect the required data, such as taking the mass of…

are cold. Dr. Richard L. Mueller defines TRPM8 as "an ion channel, upon activation it allows the entry of Na+ (sodium) and Ca2+ (calcium) ions to the cell that leads to depolarization and the generations of an action potential." In other words the TRPM8 cells open for sodium and calcium. However, in an article by Matt Soniak, he states that the TRPM8 ion cells don't only open to Na+ (sodium) and Ca2+ (calcium), but certain natural chemicals can activate TRPM8 on their own such as menthol that…

Purpose Ibuprofen is one of the most common over-the-counter medications. It reduces pain and inflammation by limiting certain hormones. The drug is taken orally, usually in the form of a pill, and is absorbed into the bloodstream once it dissolves. Both human saliva and human stomach acid aid in dissolving the pill. Human saliva has a pH of about 6, and stomach acid has a pH of approximately 2. The purpose of this investigation is to discover whether the pH of a solution will affect the time…

Metronidazole Systematic (IUPAC) name: 2-(2-methyl-5-nitro-1H-imidazol-1-yl)ethanol Bioavailability : 80% (oral), 60-80% (rectal), 20-25% (vaginal)122,123 Protein binding : 20% 122,123 Metabolism : Hepatic 122,123 Half-life : 8 hours 122,123 Excretion : Urine (77%), faeces (14%) 122,123 Formula : C6H9N3O3 Mol. mass : 171.15 g/mol Melt. point : 159–163 °C (318–325 °F) Metronidazole is a nitroimidazoleantibiotic medication used particularly for anaerobic bacteria and protozoa.…

3. Preparation of microemulsion:- Microemulsion was prepared by dispersing required quantity of Aripiprazole (15 mg/ml) in appropriate quantity of oil. The mixture was homogenized and to it, accurately weighed quantity of surfactant: cosurfactant blends was added in small portion with stirring. The blends were mixed thoroughly using magnetic stirrer and to it add dropwise double distilled water with continuous stirring around 10 min. compositions of ARP microemulsion shows in Table 1. 4.…

In the present studies, we have made an attempt to investigate the catalytic activity of as synthesized AuNPs for a model reaction of reduction of 4-NP to 4-AP in the presence of sodium borohydride. The reaction was analyzed by measuring the absorbance of the reaction mixture in the wavelength range of 200-700 nm for fixed time intervals (Fig.8a-b). Initially, the absorption spectra of 4-NP (0.05 mM) showed the absorption peak at…

Pectin yield was determined as weight of dry pectin against the weight of initial residues multiplied by 100%. Y=100(P/Bi) Where Y is the extracted pectin yield (%), P is the amount of extracted pectin in grams and Bi is the initial amount of sweet potato residues used to extract pectin. Equivalent weight and Degree of methoxylation The equivalent weight was determined according to the method by Barretina et al., (Barretina et al. 2012). 0.25g pectin was wetted with 5ml ethanol and topped…

RESULT AND DISCUSSION 7.1. Preformulation studies 7.1.1. Identification of pure drug by FTIR Figure7.1: Identification of Sample through FTIR Figure 7.2: FTIR Spectrum of Standard Prazosin hydrochloride (with references of B.P.- 2009) Table: 7.1 - Characteristics peaks of Prazosin hydrochloride S.No. Reference peaks (cm-1) Theoretical peak of Prazosin hydrochloride Obtained peaks (cm-1) Functional Group Stretching/ Bending 1 1750-1680 1529.92 1529.92 C=O Stretching 2. 1650-1580…