Hydrogen ion

Frame: The purpose of this lab is to determine if the iron given in the experiment is Fe (II) or Fe (III). Knowing what chemicals are present in a reaction and what chemicals are produced is significant information that can be applied to real world situations. An example of this is rust. Rust usually occurs when iron reacts with water. By being aware of this, substances can be made to remove unwanted rust. The mass of the collected samples will decrease as it is dried due to evaporation. Excess…

used and disposed of before ever presenting a problem, very old or damaged batteries are prone to leaking. Heat and age can cause leaks as can internal pressures that build inside the battery as it is drained. The chemicals inside batteries release hydrogen gas as they are used, which results in pressure on the battery seals. In some cases the batteries may simply be defective. No matter why they leak, batteries release potassium chloride when they do. Potassium hydroxide can cause chemical…

In the Monster Who Fed the World you learn about a German Jew named Fritz Haber. Haber was a genius chemist who learned how to take nitrogen out of the air and turn it into a liquid form to contain to use for fertilizer to help grow food for the overpopulated German nation and later the world. Unfortunately, some things and most things can have good and bad uses. Fritz Haber was born on December 9th, 1868. He was the son of a Jewish merchant in a small town. He had all ways longed for a better…

1.18 Read the following description of the element zinc and indicate which are physical properties and which are chemical properties. Zinc is a silver-gray—colored metal that melts at 420 oC. When zinc granules are added to dilute sulfuric acid, hydrogen is given off and the metal dissolves. Zinc has a hardness on the Mohs scale of 2.5 and a density of 7.13 g/cm3 at 25 oC. It reacts slowly with oxygen gas at elevated temperatures to form zinc oxide,…

The atomic radius will slowly decrease as you move across a period on the periodic table; this is caused by the addition of protons found in the nuclei of the elements. For every new proton being added, several electrons will also be included into this process by joining the identical energy level (ultimately accounting for one electron per element in said period). The electrons then attract the protons, whilst failing to shield from or repulse this attraction. Given the above information, the…

Helium was discovered by Sir William Ramsay and independently by N. A. Langley and P. T. Cleve at 1895 in England and Sweden. A French astronomer Janssen first obtained evidence for the existence of helium during the solar eclipse of 1868 in India. For many years helium was known as an element that might exist on the sun but unknown on the Earth. Sir William Ramsay discovered helium after treating a uranium mineral. Lockyer and Professor Edward Frankland suggested the name helium. A sample of…

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…

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…