that left more than 25,000 people buried in ashes. That natural disaster almost destroyed all the population in Italy, but somewhere able to survive and escape. "Scientists estimate that more than 260,000 people have died in the past 300 years from volcanic eruptions and their aftermath” (Natural Disasters & Weather). Earthquakes have killed more than 10,000 yearly. Avalanches kill more than 150 people worldwide each year. Hurricanes, Cyclones and Typhoons kill more than 6,500 people annually. But the
Crimson Peak Crimson Peak is an American gothic romance/horror movie that came out in October of 2015. It was written and directed by Guillermo del Toro — whom is famous for producing other American movies such as: Hellboy, Hellboy II: The Golden Army, Pacific Rim, Mama, and many more. Toro has always loved monsters, he considered them to “symbolize great power.” His new movie, Crimson Peak is “ about a house that has a memory and induces horror” (Biography.) A ghastly warning from a mother should
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
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
Research question: In a distillation lab, how do we calculate the number of moles of two pure liquid substances in the initial mixture, distillate samples, and the final mixture? Distillation is a process widely used in chemical research and industrial production. If we need to purify a liquid or extract a liquid substance form another, distillation can be used. Distillation works because different liquids have different boiling points. However, when a mixture is distillated, the vapor does not
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
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
Most people know the atmosphere begins at the earth’s crust and extends up but some do not know where the atmosphere ends and where outer space begins. Today I am going to examine the pressure and temperature changes of the atmosphere. Atmospheric pressure is the weight of the air above. The atmospheres pressure decreases as you migrate further away from earth and increases as you move towards earth surface. An example of a low atmospheric pressure is Mount Everest. No mountain climber would have
In Figure 1, Distillate 1 appears constant with a slight increase between 76 ° C to 78 ° C. As a result, 12.381 % of the gas chromatography evaluation of Fraction 1 was toluene. For the gas chromatography results of Fraction 2, in which Figure 1 shows the temperature continuously increases; that denotes that there was a mixture of two components. As a result, 75.912% of the sample obtained was cyclohexane
Introduction The movie “Before the Flood (2016) “ lead by Leonardo DiCaprio has been a big impact on me and hopefully the entire world.” Leonardo DiCaprio is an influential celebrity who has devoted much of his private life to help combat an increasing threat to humanity – climate change. In order to successfully advocate for a certain issue a celebrity needs credibility and public approval. DiCaprio’s stardom gives him a unique ability to be influential, different from a “regular” politician or
The strategy recommended would match both external and internal fit that help Ice-Fili to increase its current market share (5%), maximise its long term profits and to achieve a sustainable competitive advantage. To dominate the Russian ice cream market and maintain its market leader position, it has to brand itself as the top historical Russian ice cream producer and strengthen its core product in the impulse segment. Due to little product differentiation, there is low brand loyalty for consumers
Name: Institution: Course: Instructor: Date of Submission: Absolute zero Abstract The purpose of this laboratory was to apply the ideal gas law and temperature and pressure measurements to extrapolate absolute zero value on a Celsius scale. This was done by recording Pressure and temperature measurement values for different n values. In addition, linear fit graphs of pressure versus temperature were plotted for the different n values. The absolute temperature value was then determined from the
A volatile liquid can be easily converted to its gaseous state, the gas that forms from vaporization is known as vapor and it is assumed to behave as an ideal gas. One of the properties that characterize a volatile liquid is determination of its molar mass. Dumas method also known as the vapor density method uses the vapor density of the unknown volatile liquid in determining its molar mass. The major assumptions of these methods are the substance behaves ideally. The molar mass of a volatile liquid