Noble gas Essays

The discovery of Ytterbium occurred over the course of a century. It begun with the mineral gadolinite which was discovered in a quarry near the town of Ytterby, Sweden. In 1843, Carl Gustaf Mosander, was able to separate gadolinite into three materials, which he named yttria, erbia and terbia (Emsley). Due to the similarities between their names and properties, scientists confused erbia and terbia and had eventually reversed their names. In 1878, Jean Charles Galissard de Marignac, a Swiss chemist

Women in Hamlet "Frailty, Thy name is woman (1.2.150),” a quote from Hamlet in William Shakespeare’s play Hamlet conveys a message that characterizes the women as weak and subordinate to the men. In the Elizabethan Era women were often influenced by the men’s actions. Ophelia a young noblewomen and Gertrude the queen of Denmark are the only two women in the tragic play Hamlet, and both have little to no power. These limits are put on them due to what is socially acceptable for the era. The two

In the Western world of literature, Aristotle is ingrained within the consciousness of the literally tradition. In fact, the philosophy based on Aristotle’s writings is known as Aristotelianism. An example of such influence comes from the Elizabethan playwright Christopher Marlowe who stated “Live and die in Aristotle’s works” (BrainyQuote). Aristotle’s beliefs in the essentials of tragedy and comedy can be found in Poetics. So how would an ancient Greek tragedy and comedy hold up to his standard

Erasmus, a Renaissance humanist, portrays folly as a character named so in The Praise of Folly to show his appreciation for the role foolishness plays in the human life. For all earthly existence, Erasmus’s Folly states that “you'll find nothing frolic or fortunate that it owes not to me [folly]” (The Praise of Folly, 14). Moreover, she states that “fools are so vastly pleasing to God; the reason being, I suggest, that just as great princes look suspiciously on men who are too clever, and hate them

An important message that is conveyed in the poem 'The Womb' by Apirana Taylor is 'The Impact of Colonisation on the Land' This message is emphasised throughout the poem by using effective language features. These techniques include narrative point of view, imagery and contrast. A persona is used throughout the poem to talk directly to the reader and make them feel responsible. Imagery creates a powerful picture in the reader's mind making them realise the impact on the land. Finally, there is an

Reaction Paper Three In Émile Zola’s The Belly of Paris, the reader learns about the controversial life of a man named Florent, who was arrested and deported for standing up against the tyranny of the monarchy and the police in Paris. After an escape, he then returns to Paris where he wants to start a new life, but instead, he gets involved with a political group who wants to start a revolution. At the end the reader learns he has been captured, along with others in the group, and they are sentenced

fit with a tragic hero. And although Oedipus Rex was written long prior to Poetics, its main character, Oedipus, is considered by many to be the epitome of a tragic hero, embodying all six essential elements. First, Oedipus is both virtuous and of noble status; however he does have flaws to prevent him from seeming too perfect. It is one of these flaws that becomes his hamartia or “tragic flaw”, leading to the hero’s downfall. Next, the crime caused by Oedipus' hamartia is punished, but although the

not behave non-ideally in high and low temperature is because they don not follow the ways of the Kinetic molecular theory. B. Vander Waals equation is applied to the ideal gas law because when the volume is increase in a gas the molecular volume causes it by subtracting the noble gas, which is the number of moles of the gas. 2. Liquids with strong intermolecular forces have a high surface tension and viscosity because the surface tension is defined as a resistance of a liquid, which is spread

of matter, as each element and compound has a unique density connected with it. Density defined in a qualitative manner as the measure of the relative "heaviness" of objects with a constant volume. For gases the density may amount with the number of gas molecules in a constant volume. Helium balloon: Compare the behavior of helium filled balloon with that of an air filled balloon. Even taking into account the weight of the rubber balloon, the helium balloon floats on the air and is less dense than

pressure exerted by a particular gas are highly dependent on one another. This is explained by several Gas Laws. Boyle’s Law states that when the temperature is kept constant, pressure of gas is inversely proportional to the volume. Relating this principle to molar volume, the higher the pressure, the smaller the volume the gas particles occupies. When the volume of the container enclosing the gas is reduced, there are more gas particles per unit volume. The gas particles collide with each other

What is fractional distillation? Fractional distillation is a method of separating miscible liquids using heat. This technique is used for the separation of liquids which dissolve in each other. Several simple distillations are completed during fractional distillation using only one apparatus. During the process a mixture is separated into several parts called fractions. Mixtures contain different substance with different boiling points, the differences in boiling points is the main reason fractional

THE MPEMBA EFFECT Erin Splaine Deerfield School Grade 8 Abstract The reason for this experiment was to find a faster way to freeze water by simply changing the temperature. The way this was accomplished was by heating an amount of water while leaving an equivalent amount at room temperature, then freezing both amounts of water and determining which freezes first. The heated water ended up freezing completely first, even though the cooler water started to freeze first. These findings tell us that

Abstract— “An explanation for why hot water will sometime freeze more rapidly than cold water is offered. Two specimens of water from the same source will often have different spontaneous freezing temperatures; that is, the temperature at which freezing begins. When both specimens supercool and the spontaneous freezing temperature of the hot water is higher than that of the cold water, then the hot water will usually freeze first, if all other conditions are equal and remain so during cooling. The

Chapter -1: OBJECTIVE the more general When designing a small temperature control system, the best choice for a refrigerator/heater element is often a thermoelectric cooler (TEC). The operation of these devices is based on the Peltier effect, which was discovered in 1834 by Jean Peltier. When an electrical current is passed through the junction of two dissimilar metals (Figure 1), heat is also transferred across the junction. To pump heat, a thermoelectric cooler can require a significant amount

Synopsis This experiment is the determination of Calcium Carbonate (CaCO3) content in toothpaste with the use of back titration while demonstrating quantitative transfer of solids and liquids. A accurately weighed quantity of toothpaste was dissolved in excess volumes of HCl. This solution is then titrated with NaOH to find the volume of the excess HCl. The volume of HCl reacted, which is found by substracting the volume of given HCl with the volume of excess HCl reacted, can be further manipulated

In the lab, “Properties of Hydrates,” the purpose was to compare the properties of several well observable hydrates and to determine if dehydration is a reversible or irreversible change. The lab consisted of attaining a pea-size sample of each compound, burning it over a bunsen burner, and comparing the starting mass and the mass lost after the combustion. These results are important to be able to identify a variety of different chemicals that contain water molecules as part of their crystalline

Fractional Distillation Kaisha Butz Lab Partner: Jenna Knafo Instructor: Dr. Beatrix Aukszi LA: Paige Swalley 09/23/2014 Abstract: The purpose of this experiment was to fractionally distill a hexane/toluene mixture and to analyze the fractions. It is hypothesized that the first fraction will contain only hexane, the second a mixture of both, and the third just toluene. In order to separate the toluene and the hexane a Hickman still set-up was used. Once the mixture was distilled into

INTRODUCTION The objective in this experiment is to better understand why liquids evaporate at different rates. In doing so, investigation of the factors that determine the intensity of the intermolecular forces by the rate of evaporation must be obtained in the following seven liquids: methanol, ethanol, propanol, butanol, water, pentane, and acetone. Intermolecular forces are forces that exist between molecules whereas intramolecular forces are the forces that hold atoms together within a molecule

We can compare the boiling water or large pressure cooker to the massive pressure that is placed on the geyser’s plumbing system (Atteberry 2009). The water in the system reaches an unbelievably high temperature before the water starts to boil. The magma at the base of the surface moves heat through the system causing more energy to become trapped in the water (Atteberry 2009). At some point, the water will reach the boiling point and becomes chaotic. The chaos pushes a small amount of water to the

In Book XII of “The Republic,” also called The Allegory of the Cave, Plato paints a detailed picture of the process in what it is to become enlightened. As humans we have limited perceptions of reality and we mistake these perceptions as truth and goodness. Plato tells us that what we are actually seeing are mere shadows of their true forms and is very clear in his point that traversing to the world of enlightenment is both difficult and painful. Not only that, but there will be those out there that