CHAPTER 1 INTRODUCTION A. Background of the Study Concentration has been defined as the ability to direct one’s thinking in whatever direction one would intend. Concentration plays vital roles in doing well in studies. A student has to work really hard and concentrate firmly to get concepts well in mind. All students have the ability to concentrate some of the time. But at other times students’ thoughts are scattered‚ and their minds race from one thing to another. They don’t have the ability to
Premium Psychology Thought Mind
Have you ever wondered how industries are determined oligopolies or monopolies? In this paper I will discuss how concentration ratios are used to determine total market shares within four specific industries. I will also discuss the levels of competition within those industries and how oligopolies can benefit society. Case‚ Fare‚ and Oster defines concentration ratio as the share of industry output in sales or employment accounted for by the top firms (2009). They are used to measure
Premium Oligopoly Monopoly Economics
neither a membrane-enclosed nucleus nor other membrane-enclosed organelles like mitochondria and chloroplasts. Another group of microbes‚ the archaea‚ meet these criteria but are very different from the bacteria in other ways. In fact‚ there is considerable evidence that you are more closely related to the archaea than they are to the bacteria! Bacteria are living things that are neither plants nor animals‚ but belong to a group all by themselves. They are very small--individually not more than one single
Premium Bacteria
Concentration Camps in Vienna The Auschwitz concentration camp complex was the largest of its kind established by the Nazi regime. It included three main camps‚ all of which deployed incarcerated prisoners at forced labor. One of them also functioned for an extended period as a killing center. The camps were located approximately 37 miles west of Krakow‚ near the prewar German-Polish border in Upper Silesia‚ an area that Nazi Germany annexed in 1939 after invading and conquering Poland. The SS authorities
Free Auschwitz concentration camp The Holocaust Adolf Hitler
flask using a volumetric pipette. The volumetric flask was then filled to the mark with distilled water. The flask was covered with Parafilm and inverted to mix. The next part of the experiment was to determine the Vitamin C in a solution of known concentration. Observations of the Vitamin C sample and the amount found on the label was recorded. A tared piece of weighing paper was used to weigh 0.27 g of Vitamin C. The Vitamin C was then transferred to a clean 50 mL volumetric flask. The flask was filled
Premium Water Chemistry Titration
Arthur Miller ’s play‚ "The Crucible‚" is a great example of people and their struggle with peer pressure. The play takes place in the town of Salem‚ Massachusetts‚ a small puritan community based on a very harsh system of truthfulness. When Reverend Parris discovers some of the girls dancing in the forest around a cauldron‚ he suspects something is going on. Rumors start to go around town speaking of witchcraft. These witchcraft rumors finally create the ultimate black cloud over Salem‚ affecting
Premium Salem witch trials The Crucible
½Give an account of the structure and properties of Biological membranes. Include details of the modifications of membrane structure found in different specialised cells and organelles½ The Fluid Mosaic model was codified by Singer and Nicolson in 1972. It describes the structure and properties of the cell membrane very simply. Every membrane consists of a Phospholipid bilayer. This is simply two layers of phospholipid molecules that come together due to their unique properties. The heads of the
Premium Cell membrane
this because cells often find themselves in environments where the concentration of dissolved solids outside the cell is different from the number of dissolved solids inside the cell. Since the solids can not move across the membrane‚ the cell responds by moving water either into or out of the cell in an attempt to balance the number dissolved particles. This process is called osmosis‚ the diffusion of water across a cell membrane. So if a cell finds itself in an environment where there are a lot
Premium Concentration Bacteria
The perception that a double standard exists between men and women‚ with regard to matters sexual in nature‚ is our topic of study. The World Book dictionary defines a double standard as principles applied more leniently to one group than another. A sexual double standard asserts that “men have greater sexual freedom than women‚ and that society accepts and tolerates from men certain sexual behaviors‚ such as premarital and extramarital sex‚ that it does not from women” (Gentry 1998: 505). Many
Free Sexual intercourse Human sexuality Gender
mass – mass in grams of one mole of a substance. Example 3-5 page 76 4.62 g Na3PO4 Molar Mass Na3PO4 = (22.9898 gNa X 3) + (30.9738 gP) + (15.9994 gO X4) = 163.9408 g per mol Na3PO4 Moles Na3PO4 = 4.62 g X 163.9408 g/ mol = 2.818 X 10-2 mol Na3PO4 Moles Na = 2.818 X 10-2 mol Na3PO4 X 3 mol Na / mol Na3PO4 = 8.45 X 10-2 mol Na Na+ ions = 8.45 X 10-2 mol Na X (6.022 X 1023) = 5.08 X 1022 ions C. Solutions and Their Concentrations 1. Molar Concentration or Molarity – Number
Premium Mole Concentration Amount of substance