I intend to investigate if the rate of a chemical reaction changes as
the temperature increases.
There are many other variables, which can be changed in some way to
effect the reaction, some are listed below: -
- Volume of Sulphuric acid
- Concentration of Sulphuric acid
- Initial temperature of Sulphuric acid
- Motion of liquid (speed of stirring) if concentration of acid is
studied
- Amount and size of magnesium
- Purity of magnesium
- The extent of oxidation on the surface of magnesium
- Addition of catalysts
- Size of container
- Temperature of surrounding environment
- Pressure at which reaction is conducted
- Insulation of the beaker where experiment takes place
- Height of thermometer above the base of the beaker
Whilst studying the rate of reaction according to the temperature, in
this experiment I predict that the rate of reaction will increase as
the temperature increases. This is because when two chemicals react,
their molecules have to collide with each other with sufficient energy
for the reaction to take place. This is collision theory. The two
molecules will only react if they have enough energy. By heating the
mixture, you will raise the energy levels of the molecules involved in
the reaction. Increasing temperature means the molecules move faster.
This is kinetic theory. For example, a more detailed hypothesis could
be that if I double the temperature, the rate of reaction will double
as well (e.g. 20 c has a reaction time of 10 seconds whist
40 c has a reaction time of 5 seconds)
Here are diagrams to demonstrate the kinetic and collision theory.
Apparatus
Magnesium ribbon
40cc sulphuric acid
Beaker
Measuring cylinder
Thermometer
Tripod
Gauze
Heat Mat
Bunsen Burner
Stopwatch
Method
To begin the experiment I will measure out 40cc of sulphuric acid into
a measuring cylinder and then pour it into a beaker. I am not certain
how much magnesium to use that will best react with 40cc of sulphuric
acid. So before I start the final experiment I will carry out a
preliminary test to discover whether a 2cm, 3cm, or 4cm accurately
measured piece of magnesium ribbon is most efficient when doing the
final experiment.
Once I have picked the amount of ribbon to use I will place the 40cc
of acid into the beaker, onto a gauze and tripod and over a heat mat.
I shall then warm the acid up with a Bunsen burner placed underneath
the tripod until the temperature reaches 20 degrees centigrade
(measured by a thermometer) and then drop the previously measured
magnesium ribbon into the warmed acid and start timing it the second
it drops in, until it completely vanishes to the eye because it has
stopped reacting and has in a way 'dissolved'.
In a substance the rate of reaction will be quicker if it has a large
According to Stuart A. Kallen in 525 BC Egypt lost its independence and would not regain it for the next 2,500. Alexander the Great was the first to conquer Egypt, leading up to the colonization by the British-Ottoman Empire and many more. One of the most important pre-colonization dynasties was the Ptolemaic, it ran on a Greek political structure and supported the growing culture center of artists, scientist, and philosophers. As it passed through the hands of the Romans, a new dynasty of Muslims formed the Fatimid. They brought a “period of prosperity for Egypt” (Kallen, 42)
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The overall point of this investigation is to determine the influence of feminine stature in the Egyptian culture. I explored in deeper into this topic because the Egyptian culture had a lot of facets in their own culture that had disappeared for some time, only to be assimilated into modern day culture. Their culture was before their time. The period of the Egyptians was from 3500 - 525 B.C., where in 525 B.C. the Persians conquered the Egyptians (more on that later). The method that I am using that determine the feminine importance is through various articles that are displaying the role of the women in the daily society, articles about the role of goddesses in the Egyptian people’s lives, and the crusade that the Egyptian people lost
How Temperature Affects the Rate of Reaction in the Reaction of Magnesium and Hydrochloric Acid
The Effect of Temperature on the Rate of Reaction of Sodium Thiosulphate and Hydrochloric Acid
Culture can be defined as the set of a system of shared beliefs, values, customs, behaviors, and artifacts that members of a society use to cope with their world and one another. Since all wars are fought in and amongst a population, the Army seeks to develop an ability to understand and work with a culture for its Soldiers and leaders (IAW FM-3-24). Culture is the compromise of a particular group of people which defines there language, religion, social structure, art and music people come from many type of backgrounds their heritages represent their values in which are used to make decisions thru out the person life these values were taught and develop from the family after birth and thru adolescent. In this paper I will discuss the Egyptian culture and how it outside factors have contribute to it modern day society.
Egypt was introduced to Greek methods in 331 BCE when Alexander the Great founded the city of Alexandria. The country of Egypt was left in the hands of Ptolemy when Alexander died. This was the beginning of the Ptolemaic Dynasty, the divided kingdom between Greek and Egyptian ideology. In the duration of the first three pharaohs, this was known as the kingdom’s golden age. During Cleopatra’s existence, Egypt continued to decline and this came across the minds of aspiring pharaohs that dreamed of recreating
After the rinses, close the stopcock and fill the buret up to the 0.00mL line with NaOH. Quickly, open the stopcock to fill the tip of the buret and then close the stopcock. Record the initial volume of the NaOH to the nearest 0.01mL.
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The pH of the solution would alter the rate of the reaction if it was
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Have you every wondered where all writing began ? Have you often thought of the secrets about life that ancient civilizations took to their graves with them ? If so, you should be very interested in learning about an ancient writing technique called hieroglyphics, which many scientists believe is the origin of all writing (Bolia 2).
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