Figure ( 1 ) shows the XRD for bismuth borate glass samples containing molybdenium oxide from 0 to 20 mol %. From figure (1) can observe that the samples containing molybdenium oxide up to 15mol%MoO3 are in the amorphous state. Then the sample containing 20mol% MoO3 are I the amorphous and crystalline state. The analysis of the sample containing 20mol% MoO3 poured between two copper plates or poured at air, the x-ray diffraction patterns indicate the formation of Bi2MoO6 crystalline phase formed in the sample at air more intensity than the sample between two copper plates. This phase is one of the important Aurivillius oxides  possessing special perovskite-like layer structures, photocatalytic activity under visible light irradiation, the increased optical absorption efﬁciency and the decreased photo-generated carriers recombination efﬁciency. The FTIR spectra provided structural information as the arrangement of the structural units present in the glass samples with …show more content…
The values of the experimental and the theoretical density determined and tabulated in table 1. From table 1, it can show a little difference between the calculated and the experimental values that represent the accurate measurements. The density behavior can be explained according to the molecular weight and the structural volume. From fig 3 it can be observed that density increase as the increase of MoO3 that have larger molecular weight than the B2O3. From the structural units view the introduction of MoO3 into composition converts symmetric BO3 triangles into BO4 tetrahedral or converts the latter into asymmetric BO3 triangles. Both the BO4 tetrahedral and asymmetric BO3 triangles are considerably denser than the symmetric BO3 triangles.  The average boron-boron separation (-- removed HTML --) calculated according the relation [19,
By reading the new volume of the liquid substance amount one will then subtract the initial milliliter amount from the final volume reading, thus giving you the volume of the rock sample. Using the mass of the sample rock obtained one will then divide the final volume reading unveiling the density of the
ABSTRACT NRC-04, a novel antimicrobial peptide derived from skin mucous secretions of flat fish winter flounder, shows a broad spectrum of antimicrobial activity. In order to understand the conformational change of NRC-04 in different types of membrane, our team did experiments on NRC-04 with negatively charged bacterial surface membrane mimetic micelles sodium dodecyl sulphate(SDS), zwitterionic eukaryotic middle membrane mimetic micelles dodecylphosphocholine(DPC), gram-negative bacteria outer membrane mimetic micelles Lipopolysaccharide(LPS) and bacterial inner membrane mimetic micelles 1-palmitoyl-2-oleoyl-sn-glycero-3-phosphoglycerol(POPG). Fluorescence test shows that the C-terminus tryptophan residue of NRC-04 interacts with the hydrophobic
The data observed and recorded in this lab shows that the concentration of miracle gro’ does affect the growth rate and germination speed of black eyed peas. The data is shown through two graphs and two data tables. The control group in this experiment is the seeds with a 0% concentration of miracle gro’, therefore the seeds with just water. The experimental groups are different concentrations of miracle gro’ including a 10%, 15%, 20%, 25%, and 30% concentration. The variable in this experiment is the amount/concentration of miracle gro’.
n this lab, there were four objectives needed to be met. The first one was to perform a genetic transformation procedure, the second was to move genes from one organism to another using a plasmid as a vector, and the third was to manipulate tools of biotechnology. The bacteria E. coli was used to manipulate and transform. The E. coli would be tested for ampicillin resistance and a green fluorescent glow. One hypothesis made for this lab was that the bacteria that developed a resistance to ampicillin would reproduce even in the presence of the ampicillin.
VO2 max measure the maximum volume of oxygen consumed by the body to convert energy from the food that we eat into ATP that can be used at the cellular level of the body. VO2 max is important because it measures the ability of the body to produce ATP which enables the muscle to work during exercise. In order to generate ATP during aerobic exercise, the body requires oxygen. The VO2 max is a good indicator of an individual’s of cardiorespiratory capacity and endurance exercise is a way to significantly increase this capacity. VO2 max is important to the health of an individual because it measures the ability of the cells to extract and used oxygen.
The volume also increased due to water absorption, because the gummy bear expanded, making the measurements larger. Volume is based on how much space an object occupies, and one way it is calculated is based on the measurements LengthxWidthxHeight. If these measurements increase, so will the volume. But density did the opposite and decreased. Density decreasing can come down to many factors, but a big one is the compactness of an
The purpose of this experiment is to perform a two step reductive amination using o-vanillin with p-toluidine to synthesize an imine derivative. In this experiment, 0.386 g of o-vanillin and 0.276 g of p-toluidine were mixed into an Erlenmeyer flask. The o-vanillin turned from a green powder to orange layer as it mixed with p-toludine, which was originally a white solid. Ethanol was added as a solvent for this reaction. Sodium borohydride was added in slow portion as the reducing agent, dissolving the precipitate into a yellowish lime solution.
The density could very well be close to infinity which doesn't agree with what is normally found in nature. Yet, black holes are far from normal. Even more bizarre, is that black holes can decrease in density. Phil Plait again describes how when you double the mass of a black hole or when two black holes collide, there should only be a small increase in the radius of the event horizon (the space in which the gravity is too strong for anything to escape). This is due to the fact that the volume of the sphere is based upon the cube root of the radius, rather than directly correlating with the radii size.
Cadet Eric Wiggins Date: 18 September 2014 Course Name: Chem 100 Instructor: Captain Zuniga Section: M3A Identification of a Copper Mineral Intro Minerals are elements or compounds that are created in the Earth by geological processes. The method of isolating metals in a compound mineral is normally conducted through two processes.
In the end, it was concluded that Unknown 30A may have a low molecular weight and was an amine because it turned the red litmus paper blue, after being soluble in water. Therefore, the solubility of the unknown occurred due to weak intermolecular attractive forces of hydrogen bonds. Small amines form hydrogen bonds in water. As a result, the litmus paper turned red to blue because the amine accepted protons from their bond with water molecules, and was basic.
The problem with these MOFs was they were made of chromium, which was considered to be toxic to be used as a drug delivery vehicle. So another alternative was suggested, Fe-MIL-100 has been developed as a biocompatible drug carrier104.Trimesic acid (BTC or 1,3,5 benzene-tricarboxylic acid) is the organic linker. This cubic mesoporous iron(III)trimesate MIL-100(Fe)105 exhibit a low toxicity character106 raise exceptional interest as drug delivery and bio imaging systems 107. Apart from Cr and Fe, the MIL-100 contains other metals like Al 108, V 109, Mn114 and Sc110. And they exhibit somewhat high thermal stability (about 300℃) and a remarkable chemical resistance105.
 This pattern is also linked to Equations 1&2 as stated previously. The position of every fourth fringe was recorded giving the value which is required in Equation 3 below. (See Table1 for the recorded data) Knowing the wavelength of sodium to be 589nm the angle, ,at the apex between the two glass plates can be calculated using Equation 3 as
1. Description of the new venture The recycling of composite material such as glass is a growing environmental concern, and one that doesn 't have a concrete solution yet. Even most scrap metal recyclers aren’t suitably equipped to deal with this issue. In our country, this problem is widespread.
Abstract The unknown concentration of benzoic acid used when titrated with standardized 0.1031M NaOH and the solubility was calculated at two different temperatures (20◦C and 30◦C). With the aid of the Van’t Hoff equation, the enthalpy of solution of benzoic acid at those temperatures was determined as 10.82 KJ. This compares well with the value of 10.27KJ found in the literature.