Hydrogen ion

The second one is utilizing 65 Zn to analysis the removal of zinc in two different types of environment, mangrove-vegetated forest, and unvegetated tidal creek. In this study, sediments from a mangrove ecosystem in Sepetiba Bay was utilized for investigation since Zinc is the major contaminant in this region. In the laboratory, researchers used radiotracer 65Zn with half-life 244 days to undergo the experiment. Among the isotope of zinc, 65Zn has the longest half-life. Since it is the first time…

The element that I choose for this project is called Strontium. Strontium is a chemical element with the symbol (Sr) and it has atomic number of 38. It is an alkaline earth metal, and is a soft white yellowish metallic element which has highly reactivity chemically. It’s properties are mostly intermediate between aand similar to those of its group neighbors calcium and barium. When it is exposed to air, the metal forms a dark oxide layer. Strontium has 38 protons, 50 neutrons, and 38 electrons.…

frequency rate, therefore less of the substance is needed to cause an equilibrium shift. 2. When you add 6.0 M NaOH into the iron (III) thiocyanate ion equilibrium system, the concentration of Fe+3 ion decreases. This causes the equilibrium to favour the reactants, which explains the observed colour change of the solution. 3. If the hydrated cobalt (II) ion complex was refrigerated, the equilibrium would shift and the reactants side would be favoured. When the equilibrium shifts to the left, the…

Fig. 2 show the protons nuclear magnetic resonance (1H NMR) of HBA and HBA-BMF. In Fig. 2a,terminal methyl group present in fatty acid chain show the peak at around δ = 0.9 ppm.31 The proton of −CH2− groups of the fatty acid backbone and terminal methyl group attached proton show the peak between δ =1.20−1.59 ppm.30 The peak at δ = 5.4 ppm is attributed to the protons attached to the olefinic carbon atom (−CH=CH−) of fatty acid,28 this peak provides the evidence of the presence of fatty acid…

It is believed that at higher potential foils can be overheated and deformed, which can quench the reaction propagation. The quenched reaction front with deformation will be explained in more detail in the next section. The reaction front speed of 1Ti/2Al reactive foil is nearly constant for different potentials. The high conductivity of this foil type and moderate diffusion distance of atomic mixing exhibit nearly constant reaction velocity. With increasing activation potentials, the reaction…

Joseph Priestley was a famous chemist. He was famous for inventing soda water, his writings about electricity, and his discovery of gases. Joseph was born on March 24, 1733, in Bristall. He died February 6, 1804 at the age of 70. Joseph is most known for his discovery of oxygen and for isolating it. Oxygen was not first discovered by Joseph, instead the famous Swedish chemist, Carl W. Scheele, in 1772. Joseph discovered Oxygen independently in 1774. Joseph published his findings in the…

the reaction occurred. Figure 2 shows the reaction in action. Before long less Zinc became visible at the bottom of the beaker. Copper became visible at the bottom of the beaker all at the same time. The bottom of the beaker released bubbles, or hydrogen gas, from the reaction. The reaction for this particular experiment is a single replacement reaction. This means that a single element replaces a second element in a compound. The reaction is shown…

Chromate The Prefix word “poly” implies to the word many, but even ions of two atoms are usually referred to as polyatomic. Majority of the Polyatomic ions that are used with Oxygen will have the word “ate” in them. Nitrate is an example of a Polyatomic Ion. Polyatomic Ions are referred to as a radical, and less commonly, as a radical group. There are many differences between a polyatomic ion and a compound. Polyatomic ions are composed of two or more atoms that are linked to covalent…

The amino acid, homocysteine, is basically a cysteine with an added methylene bridge. Methionine, an essential amino acid, gives rise to homocysteine, a sulfur-containing amino acid, through the methionine cycle. Methionine is converted to S-adenosyl methionine (SAM) when an adenosine group from ATP is added on to activate methionine’s methyl group. SAM is a methyl donor that is a substrate used in many reactions. When it donates the methyl group, SAM is converted to S-adenosyl homocysteine…

TASK 4 CORRELATING STRUCTURE ACTIVITY RELATIONSHIPS Task 4 aims to develop knowledge of the relationship between the structure of ENMs and their toxicity. In this study, different kinds of metal oxide nanoparticles, carbon nanotubes, and graphenes will be tested their toxicities and then their structures and their toxicities will be found their correlations. For MONMs, different coatings of ZnO will be tested toxicities and observed the relationships, while differences in their sizes and…