Hydrogen cyanide

Water quality of Freshwater Creek Abstract: This report will be detailing the results found after testing three different water quality parameters on water samples taken at Freshwater Creek and comparing them with past results. It will determine if Freshwater Creek is, has been or is becoming polluted. The three tested parameters were dissolved oxygen, biochemical oxygen demand and ammonia. What was found is that the results for all three tests fitted within the recommended guidelines for…

I choose Neon because of the many things that it can be used for such as cryogenics, lasers and neon signs. Also because neon is so rare compared to other elements Neon was discovered or isolated in 1898 by two chemist named Ramsay and Travers along with krypton and xenon Neon got its name from the Greek word neos which means new Neon is important for lighting,signs,lasers and refrigeration Neon is the fifth most abundant element in the universe but is very rare on Earth(about 0.0018%) of…

Covalent bonding occurs when atoms share pairs of electrons. Atoms will covalently bond with other atoms in order to gain more stability, which are gained by forming a full electron shell. By sharing their outer most valence electrons, atoms can fill up their outer electron shell and gain stability (Chem wiki) Nonmetals will readily form covalent bonds with other nonmetals in order to obtain stability, and can form anywhere between one to three covalent bonds with other nonmetals depending on…

The purpose of this experiment was to see how single-replacement reactions change the physical matter of the original reactants. Hypothetically, the use of 2.120g of CuCl2 should react with the iron nails forming exactly 1 gram of copper. Upon starting the lab process, there was a displacement of 2.120 grams of CuCl2 into the plastic cup containing 50 ml DI water before joining the two iron nails. After the solution sat overnight, the iron nails became black in exterior color, orange copper…

The purpose of the experiment was to examine the reactivity’s of several different substrates under SN2 reaction conditions. Discussion: All of the SN2 reaction mechanisms react the exact same way. The nucleophile sodium iodide attacks the delta positive alpha carbon forming an intermediate that has a partially formed C-I bond and a partially broken bond between carbon and the delta negative leaving group. The stereochemistry is inverted at the alpha carbon as the C-I bond fully forms. Then…

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.…

1. If the molarity of the NaOH solution is increased, it would take less drops to observe a colour change. A higher concentration lowers the amount of solution required to produce a reaction due to the presence of more molecules and a higher 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…

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…

Chemistry, oh chemistry! Chemistry is an interstmig subject. Withourt it we would not know many of the thigns we do today. However, with chemistry comes a lot of studying and hard work. There are three bonds in chemistry ionic, covalent, and hydrogen. Do not ask me why they named them this because I am unble to tell you this. However I can tell you that SCl2 is an ionic bond and NaCl is a covalent bond. Well, that is that the atoms in them form those types of bonds. Hard to belive I know, but…