Hydrogen Essay

This increases the size of the system exponentially. Another obstacle in the widespread use of hydrogen fuel cells is that the main catalyst used to speed up the production of oxygen is platinum, which limits the competitive pricing of units and vehicles. There has been a new catalyst discovered by scientists at the Massauchusetts Institute of Technology

Some of these contrasts are easily clarified. For example, nonmetals such as Hydrogen, Helium, Carbon, Nitrogen, Oxygen, Neon, and Krypton are much less abundant relative to silicon on Earth than they are in the rest of the universe. These elements are either noble gases (Helium, Neon, and Krypton) or elements that form volatile hydrides, such as NH3(Ammonia), CH4(Methane), and H2O(Water). Because of Earth’s gravity not being strong enough to hold such light substances in the atmosphere, these elements

dependent variable which, in this case, is the reaction rate (floating units/minutes). Other variables that stayed unchanged throughout the experiment include the amount of 1% hydrogen peroxide and the room temperature. The hypothesis that was tested in this experiment was if we poured 40 mL of the potato solution (hydrogen peroxidase) into cup 1, then cup 1 will react the fastest because it has the highest concentration of enzymes among the four solutions. Procedure: The materials

Hydrogen Liquid Hydrogen liquid is most commonly known for its use in space programs as rocket fuel (Zona, 2010). It differs to its gaseous stage mainly through storage and transportation methods – production methods are the same, however to change the fuel to liquid, several conditions are applied. Storage For storage of pure hydrogen liquid, cryogenics is applied. Cryogenics utilises hydrogen’s boiling point and the ideal gas law (Appendix Two). It involves drastically increasing pressure (between

The concentration of hydrogen ions (H+) is measured by pH. The higher the H+ concentration, the lower the value of pH, meaning there is a large concentration of H+ in acidic solutions. H+ ions are positively charged that they are attracted to negative ions. Many ionic and hydrogen bonds keep the enzymes tertiary structure in place to maintain the enzyme’s active site in the right shape. The ionic and hydrogen ions occur due to the attraction between groups on the amino acids that charged oppositely

in the power of change. Hydrogen fuel is that change for the automobiles of the future. Hydrogen has been used for decades, but mostly for commercial use. Each year, we get closer to removing the oil company’s choke hold on our wallets. It’s time to drive with a lighter purse and a cleaner environment and it’s time for hydrogen fuel. The two largest points of debate with hydrogen fuel are cost and production Hydrogen fuel is

Hydrogen is the most popular on this list, there are many great things about hydrogen such as it is not harmful to the environment, hydrogen is actually very safe; this is because it uses a chemical process in the fuel cell to use the hydrogen as a fuel, it is much more efficient than gasoline power, and research has shown that hydrogen can actually clean the environment around them. Nonetheless hydrogen has some major problems such the fact that it is extremely expensive to pull hydrogen from water

plain old hydrogen. It is a functional group, but it is normally ignored. It is drawn sometimes, but often time in the structure, it will be left out. There is a reason for the fact that the Hydrogen is normally disregarded. That is because there are not many chemistries can be done with Hydrogen which is not an extremely reactive functional group. The hydrogen is generally mentioned in terms of proton and acid-base chemistry. However, there actually is a reaction can be done with Hydrogen, a free

methylcyclohexane. All solutions were a dark orange right after the addition of bromine. Toluene had 1º benzylic and 2º aromatic hydrogens. Ethylbenzene had 2º benzylic, 1º aliphatic, and 2º aromatic hydrogens. tert-butylbenzene had 1º aliphatic and 2º aromatic hydrogens. Cyclohexane had 2º aliphatic hydrogens and methylcyclohexane had 1º, 2º, and 3º aliphatic hydrogens. In the set that was exposed to light, Ethylbenzene was the first to react. It turned from a dark orange color to a colorless liquid

group on one amino acid bonds with the amino group on the other amino acid thus releasing water (H2O). b. Secondary- Hydrogen bonding is involved at the secondary level of protein structure. Hydrogen bonding occurs at regular intervals along the polypeptide backbone. Hydrogen bonding is an intermolecular force much weaker than covalent or ionic bonds that occurs between a hydrogen atom bonding to fluorine, nitrogen or an oxygen atom. c. Tertiary- Tertiary structure is formed between the bonding