but it is solid. The inner core is about 4/5 as big as Earth’s moon. It is estimated that the temperature in the deep interior is in fact thought to be about 5400 degrees Fahrenheit (3000 degrees Celsius) at the core-mantle boundary‚ and at the center perhaps 7300 degrees Fahrenheit (4000 degrees Celsius). Beneath the crust‚ extending down about 1800 miles is a thick layer called the mantle Earth’s crust floats on the mantle much as a board floats in water. The mantle makes up 83% of Earth’s volume
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heated the 300ml of water to a boil‚ then placed the metal that was in a tube and waited 10 minutes before we took it out. The temperature of the water before the metal was placed was 20 degrees Celsius‚ when we put the hot metal into the water and stirred it with the stirring rod it was 29 degrees Celsius‚ the change of the temperature after the metal was placed was 9 degrees. We ran this experiment twice to compare the results. In the second experiment we found that the mass of the calorimeter and
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Organic Chemistry Laboratory – CH 200L (2012 – 2013) 2B-Ph Group 3 Experiment 1 Simple Distillation of Vodka Ancell Julienn C. Cruz Department of Pharmacy‚ Faculty of Pharmacy University of Santo Tomas‚ Espana Street‚ Manila 1008 Date Submitted: July 5‚ 2012 Abstract Distillation is a process of converting a liquid to a vapor‚ and then‚ collecting the distillate in another container. There are four distillation methods which are fractional distillation‚ simple distillation‚ vacuum
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temperature and pH for the enzyme? In other words‚ at what temperature and pH was the rate of reaction fastest? How did you determine this? The optimum is twenty-three degrees Celsius where it reached the maximum rate. By measuring the reaction rate at different temperatures and finding that the twenty-three degrees Celsius let it reach max. So‚ too low wasn’t enough‚ and too much caused it to taper off and not reach the max reaction rate. For pH‚ the optimum pH for the enzyme is seven. The other
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this lab. Purpose and Question: The ideal temperature for yeast growth is between 30 and 35 degrees Celsius depending on the type and if there is a sufficient food source. The lab will test whether yeast would release more carbon dioxide provided that there was sugar at room temperature or in an incubator? The incubator will be set at 37 degrees Celsius and the room temperature is 22 degrees Celsius. -Would yeast produce more carbon dioxide with the presence of sugar at room temperature or in an
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one degree Celsius. Sand has a lower specific heat. It takes .19 calories per gram to raise the temperature of the sand by 1 degree Celsius. Sand requires fewer calories to raise its temperature one degree Celsius and that’s why it heats up faster than water. Experiment: See lab sheet. In this experiment there was no control. The independent variables in this experiment are the time‚ and the amount of sand and water put into the cans. The dependent variable is the degrees (in Celsius) that air
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out. The tube was then placed in the 37 degrees Celsius incubator for 48 hours‚ observed for a blue color‚ then placed back in the incubator for another 5 days and observed again. The sixth and seventh tests performed was the fermentation of sucrose and arabinose. This was performed by aseptically inoculating a tube of phenol red sucrose broth‚ and a tube of phenol red arabinose broth with the unknown culture and incubating at 37 degrees Celsius for 48 hours. After incubation‚ the two tubes were
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experiment 1 trial will be conducted for glycerin with 70 Celsius degrees ‚66‚62‚58‚ and another trial with 10 Celsius degrees. Scientific Background:- In this experiment I have chosen to investigate the effect of temperature of glycerin on the index of refraction. This factor plays a major role on the index of refraction‚ not only that ‚ however it changes glycerin on a cellular level. As
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Gracen Seiler April 7th‚ 2015 Section- 109 Investigating Stoichiometry with Sodium Salts of Carbonic Acid Introduction- This experiment is intended to help find a better understanding of chemical stoichiometry through titrations of NaHCO3 and NA2CO3 with HCl. A chemical reaction is a process that involves rearrangement of the molecular or ionic structure of a substance‚ as opposed to a change in physical form in a nuclear reaction. Titration is when a measured amount of
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Effects of Temperature and Cofactors on Enzymatic Reactions “I pledge that no unauthorized assistance has been given or received in the completion of this work. Experiments described were performed by me and/or my lab group and this write-up is entirely my own creative work.” X________________________________________ Introduction Enzymes are protein molecules that speed up the rate of reactions by reducing the activation energy of a reaction. They act as catalysts in reactions‚ increasing
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