Mole College Essays Samples For Students

Prelab assignment

**Ethylenediamine should be abbreviated "en". **
**Tris (etheylenediamine) nickel (H) chloride should be abbreviated "Ni (en) 3Cl2". **
1. Describe a Lewis acid and Lewis base.
A Lewis acid is usually a Cat ion that accepts electron from an unshared one. While Lewis base is a nucleophilic and more often an Anion that donates a lone-pair of electrons (Leach, 1999).
2. Using the reaction to be performed in this lab, determine the limiting reactant if 1.3 g NiCl2.6H2O and 11 ml 1.4 M ethylenediamine are reacted.
Since it has less ethylenediamine required to react all of the NiCl2.6H20, then ethylenediamine ...

For any chemical compound an empirical formula is the simplest positive integer ratio of atoms present in that compound (Reger et al, 135). As oppose to the molecular formula, Empirical formula takes the lowest number ration in the elements in a compound and not the actual number. For example carbon dioxide is written as CO2.

Significance of Empirical formula

The process of finding empirical formula involves computing the composition percentage represented by each compound’s mass. Below are some steps followed when determining empirical formula:

The first step is stating the number of grams in every element.

The second step involves computation of molar mass through conversion of each element’s mass to moles.
The ...

Answer the Questions

Social behaviour in animals is the relationship or interaction that happens between two or more individuals. This usually happens between animals of similar species. They form familiarities and cooperate in matters such as mating, parenting, communication and territorial authority. Group behaviour or collective behaviour on the other hand is the coordinated behaviour of large groups of animals usually of a similar species. This is characterised by the benefits of these groups. Animal group behaviour is different from social behaviour because of the fact that even animals from different species can form a group based on their similar interest while in social ...

17thJanuary 2013

A Copyright is a way for a person to possess intellectual profit of his/her own creation. According to the United States copyright office, “It is a principle of American law that an author of a work may reap the fruits of his or her intellectual creativity for a limited period of time. “ (Copyright , 2013, p. 47). Copyright is an enshrined institution in the United States, and also throughout the world. Many argue that without the institution and supporting laws of copyrights, that artists, musicians, writers, creators, etc., would stop producing their work since it would cease to represent a monetary gain. While there are plenty ...

Empirical formula is the formula of a chemical compound represented as the smallest whole number ratio of the subscripts of the elements in the compound. Particularly for big ionic compounds or compounds that possess complex and network structure, such as diamond, there is no distinctive molecule. Hence, they cannot be represented with their molecular formula. For such compounds, empirical formula is useful. Empirical formula is also known as stoichiometric formula. For example, CH3COOH has two carbon atoms, four hydrogen atoms, and two oxygen atoms. Hence, it can be expressed as C2H4O2 and reduced to CH2O.

Significance

Empirical formula offers useful ...

Question 1

For succinate oxidation to fumarate there is yield of 2H+ and 2 electrons; however, the process of the reaction skips one step thereby leading to 2 ATP. The resulting FADH2 electrons skips the first stage of oxidative phosphorylation by moving into the electron transport chain located in CoQ. This can be illustrated as NADH -> CoQH2. Consequently, there is 2 ATP forming stages found in the electron chain from CoQ to O2 used in this course (Schwender et al, 50). Indifferent to the first scenario, oxidation of malate to produce oxaloacetate results to NADH, with production of 2H+ and ...

Article Reaction:

Article Reaction:
In his article titled “Reporters Helped Bust Iran’s Nuke Program”, Noah Shachtman made a number of curious observations with respect to the circumstances that helped to uncover Iran’s unsanctioned nuclear program. This piece is especially interesting now, considering that as of January 2016, Iran has partially dismantled the program so that international community would be inclined to lift the sanctioned imposed on it (Nasrella 2016). Despite the fact that Shachtman’s article had been written back in 2007, before any kind of constructive deal with Iran was ever reached, it provides a novel outlook on ...

Question 1

FAD is reduced to FADH2 in Succinate oxidation to fumarate through catalytic action of succinate dehydrogenase. The resulting FADH2 electrons skips the first stage of oxidative phosphorylation by moving into the electron transport chain located in CoQ. This can be illustrated as NADH -> CoQH2. Consequently, there is 2 ATP forming stages found in the electron chain from CoQ to O2 used in this course (Schwender et al, 50). Indifferent to the first scenario, oxidation of malate to produce oxaloacetate results to NADH consequently, the NADH produced electrons completes its movement in 3 ATP forming steps associated with chain ...

The compound C12H10Cl3N3O8Ru2 is made up of various elements. These elements include carbon, hydrogen, chlorine, nitrogen, oxygen and ruthenium. One of the features of the compound is that it has a formula weight of 632.72grams/ mole. This is the weight obtained by summing the atomic masses of the elements that make up the compound. This mass means that from every one mole of the compound, the total weight is about 632.72 grams. It can be observed that the mineral is heavy as compared to other compounds of the same nature.

The compound is joined together by covalent bonds. At room ...

Cause and effect of cancer

For a common individual cancer is the deathly disease, for which a treatment process that would completely finish it has not yet been found! We fear it as we fear death, because at the end of the day that is what it does to us. It slowly decays our body to the extent that there is nothing left inside us.
Cancer refers to a non-communicable disease characterized by uninhibited multiplication of abnormal cells in any part of the body. It is these abnormal cells which, are called cancerous, malignant or tumor cells (medicinenet.com).
Types of cancers are further identified by ...

Answers to Questions

Block 1: Problems, Challenges and Opportunities (Parts 1 and 2)
T207 Engineering: Mechanics, Materials, Design
Answer 1(a)
The three categories of Engineering Solutions are Innovation by Context, Innovation by Development and finally Routine Solutions. Innovation by Context will have inventions in their ranks, which relies on a new technology to bring about a solution to a problem. The ball point pen(deviating away from the liquid ink), the Gore-Tex® Fabric which is not a fabric but layers of artificial organic material making it breathable, waterproof one-way,durable,etc. and the Dyson™ Vacuum Cleaner which uses cyclonic vacuum technology will fall ...

Chapter 9 and Chapter 11 Narrations

Chapter 9: Acids and Bases
Acids are defined as molecules or ions that are able to donate hydrogen ions to bases. Other authors have defined them as substances that produce hydrogen ions (H+) when dissolved in water. They are therefore proton donors (Brent 10-11). Acids and bases have become important components in biological and environmental systems and industrial processes. In fact, most of items found at home contain either acidic or basic substances. Acidic substances, which include grapefruit, lemons, vinegar and lime, taste tart or sour (Lew 1). Acids can be either diluted or concentrated. Concentrated acids such ...

“Abstract”

Cholesterol plays a pivotal role in the fluidity of plasma membrane in cells. Evidence of cholesterol evolution from lanosterol suggests that cholesterol has little sensitivity to changes in temperature as opposed to lanosterol. Simulations also revealed that there is no ld-lo coexistence and 3-phase lines in lipid/lanosterol systems as opposed to lipid/cholesterol systems. The sterol also favors a strong interaction with lipids having saturated acyl chains (Miao et al.) which is a key factor in understanding and characterizing the lipid bilayer model. Based on surface potential measurements, cholesterol and ergosterol reduce the penetration of water into the lipid monolayer. Results revealed that excess ...

Cancer is a disease that has been reported to claim millions of lives a round the globe and has many forms. Cancer is defined as “a malignant form of tumors, which are tissue masses that arise through mutations in the genes that govern cell growth and division” (Arndt, 2010). Skin cancer is just one of the many types of cancer that affects people and most commonly in the United States. It is a disease whereby cancerous cells are found on the epidermis which is the outer layer of the skin or uncontrolled growth of skin cells. This cancer affects the skin tissues and ...

A college provides educational services to the students. Students are the targeted customers for the colleges. Purely academic educational services are provided by the colleges. College provides education to the students who have completed its school education and looks for the higher studies. The working structure of college is designed to create an environment in which students can study with all the facilities that are specially designed to assist them in studies. The education is provided by the professional teachers in well organized classes. Library and computer lab is developed to facilitate the students regarding the studies. The suppliers ...

Summary

Of Losers And Moles: You Think Reality TV Just Writer Itself?

I found myself living out a high school fantasy, a couple of summers ago, in Playadel Carmen as I was chasing stunning Playboy playmate Angie Everhart. As she disappeared, I quickly snapped back to reality. I was there as a writer for ABC's "Celebrity Mole: Yucatan," and was to investigate what Everhart was saying about the former MTV VJ Anada Lewis. Would they be dueling divas, headed for a catfight by day's end? I needed to find out. With the earpiece that picked up the two women's microphones, I began taking notes. ...