Enthalpy of Neutralization J. Smith M. Smith CHEM 1290-xx 10-31-06 TA Purpose: The purpose of the experiment is to determine the calorimeter constant for the calorimeter holding a specific solution based on the data of heat lost and heat gained. The purpose is to also be able to determine the enthalpy of neutralization for the reaction of a strong acid (phosphoric acid) and a strong base (sodium hydroxide). Experimental: Materials: The materials needed for this lab included; 2 large beakers‚
Premium Temperature Thermodynamics Acid
Transportation and technology evolved from horses and dirt roads to trains and steam boats‚ from imperfect and handmade objects to precise and factory-made objects. These changes influenced an environment of factories and very large cities. This big change was called The Industrial Revolution. Transportation changed from horseback riding to trains and steamboats. New roads were invented to help horse carriages travel smoother. Steamboats‚ clipper ships‚ and canals all helped travel on the water
Premium Industrial Revolution Transport Rail transport
The affect of temperature on the rate of movement of woodlice Aim: The aim of this experiment is to establish whether a change in temperature affects the rate in which woodlouse move. I measured the rate by timing the woodlouse to move a set distance of 20cm‚ and altered the surrounding temperature by submerging a clear tube in water with different temperatures controlled by a water bath. Research: It is to be believed there over 3000 different species of woodlice‚ a total of 42 species
Premium Spearman's rank correlation coefficient Porcellio scaber Woodlouse
Correlation between the chemical activity of Amylase and change in temperature ABSTRACT This experiment focuses on how the change of temperature affects the rate of reaction of amylase. In the experiment there were four different environments that each contained 2 test tubes. Each test tube consisted of the same concentration and amount of starch and amylase. After having each test tube placed in these environments for several minutes a droplets of each mixture was placed onto each slot which
Premium Enzyme Chemical reaction Amylase
− ( − 6 ) = _______ − 2 − 10 = _______ − 8 − ( − 8 ) = _______ − 8 − 8 = ________ m. − 16 − 11 = _______ Last night the temperature in New York City went down to 4°F. In Antarctica‚ the temperature went down to − 20°F. What is the difference between the two temperatures? answer: _____________ In Antarctica‚ the temperature air temperature is − 5°F . The temperature of the nearby water is 33°F. How much colder is the air than the water? answer: _____________ Super Teacher Worksheets − www.superteacherworksheets
Premium Addition Heat Prime number
Most of life’s biological processes involve the use of protein catalyst called enzymes‚ that help speed up chemical reactions within the body without being denatured in the processes. Enzymes can be used continually by temporary binding to a specific substrate in the active site to convert the substrate into a product that the cell needs to perform a specific function. Without the use of catalyst enzymes‚ homeostasis wouldn’t be able to occur quickly enough which can result in many bodily functions
Premium Enzyme Chemical reaction Metabolism
the most oxygen of all three trials. Heat tends to increase the rate of chemical reactions‚ explained in the article Temperature Effects (Introduction to Enzymes) by Chris Jamison. “Like most chemical reactions‚ the rate of an enzyme-catalyzed reaction increases as the temperature is raised. A ten degree rise in temperature will increase the activity of most enzymes by 50 to 100% . Variations in reaction temperature as small as 1 or 2 degrees
Premium Chemical reaction Oxygen Enzyme
In class we decided that the rate of a reaction increases when there are more collisions or when the activation energy is reduced. We then determined that there were four ways to increase the reaction rate: increase temperature‚ add a catalyst‚ increase surface area‚ and increase the concentration of reactants. The objective of this lab was to experimentally show how temperature and surface area impact the rate of reaction‚ so only two of these methods were tested. The evidence indicates that increasing
Premium Chemical reaction Reaction rate Chemistry
During the 1700’s much changed. Thing like people’s freedom of speech‚ equality among more people. So much changed; such as‚ the world of arts. The Enlightenment changed a lot in the lives of people. It changed the arts; music literature‚ and painting. One‚ of the many things that changed during the Enlightenment period was music. Before the Enlightenment music was called the Baroque Music. In those times Bach and Handel were popular. When the Enlightenment came and changed things it was now called
Premium Baroque music Music Wolfgang Amadeus Mozart
is essential for changes and reforms as it allows people to communicate their message and what they want to see changed. The democracy allowed the people to enact the change they want after they have stated their opinions or beliefs. Without the freedom of speech reforms would have little success. America is now a democracy where you have a say in the government and the ability to say what you want believe what you want and do what you want‚ but it wasn’t always like this.
Premium Freedom of speech Democracy United States