Organic chemistry is the study of essentially all substances containing carbon. Organic compounds that contain only carbon and hydrogen are called hydrocarbons. The simplest hydrocarbons are the alkanes which contain only single covalent bonds. Methane is the simplest alkane. It is also the major component of natural gas. Methane contains only 1 carbon in the molecular formula and the structural formula. There is ethane which is 2 carbons, propane that is 3, butane which is 4, pentane which is 5 and so on. There are also alkenes. Alkenes are hydrocarbons containing carbon-carbon double covalent bonds, and last but not least there is the alkynes which are hydrocarbons containing carbon-carbon triple covalent bonds. They also have different names. Alkanes end with –ane. Alkenes end with –ene, and alkynes end with –yne. In organic chemistry there are also isomers, isomers are One of two or more compounds that have the same chemical formula but different arrangements of the atoms within the molecules and that may have different physical/chemical properties. For example, CH3OCH3 and C2H5OH are isomers. They both have the same amount of carbon atoms but are arranged differently. Organic chemistry is used EVERYWHERE. For example methane, which is a gas produced by flatulence, that gas is also found in marshes.
An acid is a compound that produces hydrogen ions when dissolved in water. Therefore, the chemical formulas of acids are of the general form HX, where X is a monatomic or polyatomic ion. When the name of the anion ends in –ide, the acid name begins with the prefix hydro-. The stem of the anion has the suffix –ic and is followed by the word acid. Therefore, HCL is named hydrochloric acid. When the anion name ends in –ite, the acid name is the stem of the anion with the suffix –ous, followed by the word acid. Thus H2SO3 is named sulfurous acid. When the anion name ends in –ate, the acid name is the stem of the anion with the suffix –ic, followed by the word acid. Thus HNO3 is named Nitric acid. A base is a compound that produced hydroxide ions when dissolved in water. Ionic compounds that are bases are named in the same way as any other ionic compound—the name of the cation followed by the name of the anion. For example, NaOH a base used in making soap and detergents is called sodium hydroxide.
Ana-Mauríne Lara’s Erzulie’s Skirt positions the female body as the scene where lives are interconnected across history and as a dissertation of the human condition. Her protagonists, Micaela and Miriam, tell a story of love, struggle, and survival that echoes the historical significance of slavery and the Caribbean middle passage across time and space. Divided into several sections based on time and location, one particular period in Lara’s novel connects Micaela and Miriam’s experiences most closely with slavery as a whole. After a voyage across the Mona Strait as an attempt to escape from the conditions in the Dominican Republic, they find themselves captured, trapped in a brothel, and forced into prostitution. Many parallels can be drawn to interpret Lara’s use of the brothel as a metaphor for the slave ships used to travel across the original Middle Passage, including the comparable use of people as commodities, the specific imagery and language Lara uses, the historical narrative presented at the beginning of each section, and the larger themes in which identities were simultaneously stripped by oppression and also preserved within the context of community and spirituality.
Cu (aq) + 2NO3 (aq) + 2Na+ (aq) + 2OH- (aq) → Cu(OH)2 (s) + 2Na+ (aq) + 2NO3(aq)
According to the Brønsted-Lowry acid-base theory, an acid is a reactant that loses a hydrogen ion to another reactant. A strong acid is when virtually all the molecules of the acid ionises in water. In this experiment, the strong acid used was hydrochloric acid. This acid is formed when gaseous hydrogen chloride reacts with water according to the equation:
There are four different types of hydrocarbons each having a different homologous series (formula for carbon chain). These being an alkane (formula = CnH2n+2), alkene (formula = CnH2n), alkyne (formula = CnH2n-2), and an alkanol which has the same formulae as an alkane only that is has a hydroxide molecule which replaces one of the hydrogen atoms (refer to figure 3 and
Greta Christina eloquently puts into words something I know in theory, but can be hard to understand in practice in heterosexual relationships. In Are we having sex now or what? Christina details her record keeping of how many people she had sex with, and what she counted as sex. She talks about the limiting misconception of sex only being coitus, and other acts not “counting.” Christina writes of how when she started having sex with women her outdated system of what was sex and what was not sex was completely destroyed. By limiting sex to “penis in vagina,” Christina was discounting some of her favorite sexual experiances, and including ones she did not particularly enjoy.
In Chemistry 221, we are learning how to name acids. In this lab we used hydrochloric acid (HCl), the reason I knew it was called “hydrochloric” was due to the rules of naming acids. When there is no oxygen involved, the “hydro” prefix is put in front, followed by the root of the second element (which happened to be chlorine) and then add the suffix –ic at the end.
The link between the number of carbon atoms in a fuel with the amount of energy it releases. Alcohols generally belong to compounds whose molecules are based on chains of carbon atoms. They usually contain one oxygen atom, which is joined to a carbon atom by a singular bond. This makes them different from other compounds.
An alkali is a soluble base and forms hydroxyl ions (OH-) when placed in water. It can be called a proton acceptor and will accept hydrogen ions to form H2O. An example of an alkali is Sodium Hydroxide (NaOH). Neutralization Reaction:- [IMAGE]Acid + Alkali Salt + Water [IMAGE]Hydrochloric acid + Sodium Hydroxide Sodium Chloride + Water [IMAGE]HCl(aq) + NaOH(aq) NaCl(aq) + H2O(l) [IMAGE]H+ (aq) +
Investigationg of Chemical and Physical Changes Why I am conducting this experiment? In order to learn how to recognize chemical and physical changes, I have to carry out this experiment to see different chemical and physical changes of different substance. How can we recognize physical changes and chemical changes? -----------------------------------------------------------
" Carbon is used in diamonds, petroleum oil, radiocarbon dating, smoke detectors, kerosine, gasoline, carbon fiber. Alcin is a member of the Council of the United States. Organic chemistry is the study of carbon and its compounds (Alcin). Carbon is less than one percent of all matter. Carbon is part of every living thing (Gangson).
From the unit of chemistry in grade ten science, the students have learned many things from different types of elements in the chart all the way to how each element impacts the daily life each student or even adult lives in. Some of the things I as a student have learned include how to draw the different elements in a bohr rutherford diagram, balancing chemical equations, types of chemical reactions, and even information about the different types of acids and bases. Although there were many other things in the unit, these four definately helped me learn about chemistry in a more in-depth way, as well as teaching me something very new since these were some things a few of the students had never done in the previous years. Learning this in the classroom has really opened my eyes to the world in which we live in today, many times I leave the house on a cold day and as I look upon the cold water becoming ice or even the snow falling down, I know how it is happening, why it is happening, and I can even picture the molecules solidifying as we had seen in class with many different diagrams.
How did the world of chemical engineering start, what's the history of chemical engineering? Chemical engineering started with a man named George Davis who is credited with the concept of unit operations. Unit operations is analyzing the process of plants, such as water, petroleum, and petrochemical. They studied and made a process to move around and mix chemicals. Unit operations is the same concept of what we now know as chemical engineering. Davis was given the credit, but in 1977 a professor of chemical engineering reported that in 1880, Davis overheard a chemical manufacturer say something about chemical engineering. Although this was never proven, its still considered Davis’s idea. Chemical engineering is also the reason that the United
What exactly is a chemical engineer? Many would say that it is simply a "chemist who builds things" or an "engineer who makes chemicals. However, neither of these statements is completely true. The term "chemical engineer" is not meant to actually describe what it is a chemical engineer does, but to describe what sets it apart from the other branches of engineering: civil, mechanical, and electrical. On average, chemical engineers are numerically the smallest but also the highest paid. It is not a profession the must dwell on the past for comfort and support, for its greatest accomplishments are still yet to come.
The growing relevance of Chemical Engineering in today’s world, from energy & oil industries to pharmaceuticals & biotechnology, and a keen desire for applying this knowledge in interrelated spheres motivates me to pursue a Master’s degree in this field. My interest in science goes back to the time when I was in school. We had a young and enthusiastic teacher who took us on field trips and visits to science fairs and museums. This nascent interest has only burgeoned through my years in school and high school, as I have learnt more about the subject. In the long run, I see myself as a part of a leading research group, either as a faculty member or in the R&D department of an organisation contributing my bit to the field of Chemical Engineering. As a research scientist, I hope to make a difference in this field and learn more through the innovative challenges.
For centuries, many scientists and researchers have pondered on the idea of combining two or more substances together to create something new. These explorations have led to the idea of what kind of reactions would occur when diverse elements are combined. This is a concept known as chemistry, a part of science that corresponds with how matter is created from different properties and the process it goes through to create a new substance. Chemistry is a scientific concept that is used in everyday life and is a crucial part in the development of new technology and substances that allow today’s quality of life. The use of chemistry branches off into many different routes, including medical related fields, agriculture, and even in weapons of