Investigating the Effect of Concentration on the Temperature Rise, Heat Evolved and Heat of Neutralization for the Reaction Between HCl and NaOH Neutralization is the special name given for the reaction between an acid and an alkali leading to the formation of water molecules and a salt. The reactions between basic oxides, or hydroxides, and acids are very important and are called neutralizations. Since the metallic ions and anions from the acid do not change, the essential reaction of neutralization
Investigating the Effect that Concentration Has on a Reaction INTRODUCTION ============ Aim- to investigate the effect that concentration has on a reaction on these factors: * Temperature rise * Heat evolved * Heat given off due to the neutralization between Hydrochloric Acid and Sodium hydroxide solution. Neutralization takes place when acids react with substances called bases. When they react their acidity is cancelled out, and the reaction always produces a salt and water
than that of the product. The energy is given out when forming the bonds between the new water and carbon dioxide molecules. The amount of energy produced by such exothermic reactions can be calculated by using the formula : Mass of the substance x rise in temp x SHC( specific heat capacity). The specific heat capacity is the number of joules required to heat one gram of water by 1ºC. I chose to use water because it is safe, easily found, and has a reliable specific heat capacity of 4.2. The bond
achieve a temperature rise of 15°C. The enthalpy change of combustion is the amount of energy transferred when one mole of a substance burns completely in oxygen (always ´ve). To work out the enthalpy change of combustion of the alcohols the energy output must be measured. The easiest way to do this accurately is to use the thermal energy of combustion to raise the temperature of a substance with a known specific heat capacity, (the amount of energy required to increase the temperature of 1g of
from page 2: Energy Transferred = Mass of water x Temperature rise x specific heat capacity (4.17) Now to calculate the enthalpy change of combustion, the following steps are taken: 1.) Energy per gram = Energy Transferred ÷ Average mass change of alcohol 2.) Energy per mole = Energy per gram x Molecular mass The Energy Transferred from each alcohol is constant as the variables, volume of water (200ml) and temperature rise (15oC) were kept constant. Therefore the calculation
There are factors which affect the rate of a reaction, and also if the collisions are successful or not. Temperature rise gives particles more energy, and as thy move around more and much quicker they have collisions. Also it gives particles more energy, so that when they collide the collisions are more successful. Both these things mean that there is a faster reaction rate. But, if temperature decreases there is a slower reaction rate, as there is less energy. If there is larger surface area, it
population. [IMAGE] Causes: - The causes of these forceful floods can be traced back to a number of different things including human factors such as deforestation, the greenhouse effect (this is show by the facts stating the 1°C temperature rise in southern Germany and the winter precipitation in the Rhine catchment increasing by 40%) and the straightening of the Rhine for commercial purposes. Humans currently use 80% of the former floodplains. Roads and railways cross the alluvial
to find out what happens to the heat of the zinc and copper sulphate solution when one of the variables is changed. Key variables: § amount of copper sulphate solution § amount of zinc I am going to investigate what happens to the temperature of the zinc and copper sulphate solution as the amount of zinc is increased. The equation to show this reaction is: Zn + CuSO4 ® ZnSO4 + Cu The enthalpy change for the reaction is: ²H = -217kJ mole ¹ This means that if 1 mole of solution
time we are going to have to perform the experiment, we are first going to find out a set up that would allow us to produce definite results quickly. By this I mean that we will to set up the apparatus in a way that would give us a large temperature rise in a short amount of time, e.g. 2 or 3 minutes. Here is a diagram of how we set up the apparatus. To perform this experiment we needed: * Electric weighing scales * A measuring cylinder * 5 spirit burners (1 for each fuel)
The Factors that Affect the Temperature Change Between Copper Sulphate and Iron Filings Aim The aim of this piece of coursework is toinvestigate the factors that affect the temperature change between Copper Sulphate and Iron filings. Affecting factors Ø The concentration of Copper Sulphate Solution (CuSO4) Ø The amount of Iron filings (Fe) used I have chosen to experiment using the 1st factor I will have to change the concentration of the Copper Sulphate Solution (CuSO4) Prediction
produce our summer rains are called ordinary thunderstorms, or air mass thunderstorms. They form when warm, humid air rises in an unstable atmosphere. Warm air cools down as it rises, and once it becomes colder than the air around it, it will begin to fall back down. In an unstable atmosphere, the temperature of the surrounding air decreases faster with height than the temperature of the rising warm air. This causes the warm, moist air to continually be warmer than the atmosphere, and continue rising
The Sun Also Rises [I cannot express to you how glad I am that I am taking this class. I am thoroughly enjoying Hemingway. The Sun Also Rises is one of the best books I've read in quite a long time. For a while there, I was, for God knows what reason, taking Physics and Chemistry and Biology. It is really an adventure to be back with books and words and reading. I am also amazed that I never could read more of Him when it wasn't an assignment. And how is it that when I am told to write "a 3-5 page
are never tired, so long as we can see far enough." To me, horizons represent all that is possible in the world. When we look out into the world, we can see the horizon, which is an ending, but all the space in between is just the beginning. The sun rises and sets over the horizon. It is where each day begins and ends We can only see so far, but we know there is so much more to be seen. If for some reason you don’t like what you see, then there is always the hope that you can change it, because you
Thunderous noise coming from the crowd, situation getting heavier the closer you get to the line. Tension raised to the max as time draws nearer….5-0 no where to be found, time to go. Moment of truth draws near, one hand rises, heartbeat rises with it. Second hand rises, heartbeat rises even more with it. The body tightens up; the mind focuses as you get ready. Hands drop just as fast as your foot drops to the floor. Loud squealing coming from behind you, body is thrown back, scenery passing by, quickly
The True Heroes in Hemingway's The Sun Also Rises The imagery of bulls and steers pervades Hemmingway's novel, The Sun Also Rises. Bullfighting is a major plot concern and is very important to the characters. The narrator physically resembles a steer due to the nature of his injury. Mike identifies Cohn as a steer in conversation because of his inability to control Brett sexually. Brett falls for a bullfighter, who is a symbol of virility and passion. However, there is a deeper level to the
Daisy Buchanan of The Great Gatsby and Brett Ashley of The Sun Also Rises Written right after the publication of Fitzgerald’s The Great Gatsby, Hemingway’s The Sun Also Rises is apparently influenced in many ways. The most obvious of Fitzgerald's influence is manifested in Hemingway's portrayal of his heroine, Brett Ashley. Numerous critics have noted and discussed the similarities between Brett and Daisy Buchanan, and rightly so; but the two women also have fundamental differences. Compared
Conflict is about power; it results from struggles to maintain or gain power The need for power is a reality of life; to use or abuse, to claim or deny, own or disown. However the struggle many go through to gain that feeling of control and power can lead to inner turmoil and conflict between others and one self. Set in the times of the tragic witch trials The Crucible is a drama that shows power resting on moral, legal and religious dynamics that lead to inner, social and religious conflicts. Marking
The Sun Also Rises "This is the way the world ends. This is the way the world ends. This is the way the world ends. Not with a bang but a whimper." (T.S. Eliot, The Hollow Men) "…but a whimper.", Eliot was writing of the Lost Generation. The period after World War I were people were disillusioned, wandering through their life lost, not sure what their goal was. In Ernest Hemmingway's novel, The Sun Also Rises, the Lost Generation and their inability to cope with the change around them is the
Hope in The Sun also Rises WWI consumed the lives of millions. Those who lived through the war may have had only minor physical injuries or perhaps they were lucky enough to get away unharmed, but all of those who went home in the 1920s had lost an important feature in their life which was the importance of hope. The lack of hope hurt all the characters who experience the war in one way or another. Which, led to love being an empty word to the affected characters. These affected characters search
It has always been argued that nature, nurture, or both affect human development. In Flobots’ “Handlebars”, the lead singer answers the question of whether nature, nurture, or both affect human development by showing two best friends who went their separate paths and turned into two completely different people. The music video and song shows and tells the experiences that shaped both friends and ultimately caused the demise of one, if not, both of them. However, within this song and video the power