of sulphuric acid and the manufacturing industry on the environment
Despite the cautious steps taken by the sulfuric acid industry there is always the risk of accidental leaks which will have a negative effect on the environment for example the chemical plant in Oberhausen, Germany, where an accident caused a sulfuric acid cloud to float over the city. From this accident at least over 150 people have been treated for breathing problems.
Sad to say but some production factories practise wrong…
Silver, like gold, is found in a native state; frequently too it occurs as an alloy containing gold, which is recognized, when the silver is dissolved in nitric acid, as the black sediment or oxide of gold. Arsenic and antimony are found also alloyed with it. Several of the ores of lead and copper contain silver. As silver is a precious metal often used for coins, its mining has historically often been lucrative. As with other precious metals such as gold, newly discovered deposits…
4.2 Resources CO2
Fig.1 depicts the principle of chemical energy transmission system.
Fig.2 explain the Eva-Adam process.
5. Thermodynamics of CO2 reforming of methane
It is essential to understand the thermodynamic of CDRM represents as follow:
CH_4+CO_2 □(→) 2CO+〖2H〗_2 ∆H_298=247 KJ⁄(mol ) (1)
This reaction above is highly endothermic which is favored by low pressure but, requires a higher temperature. A reverse…
With A = 52.4, and B =119.8. Moreover, some previous works overlooked that the increase in temperature is always accompanied by the increase in water vapour pressure, and lower CO2 partial pressure respectively. Consequently, according to Henry’s law, the amount of dissolved CO2 in water is also decreased. Thus, the increase in temperature will increase the kinetics of precipitation, and also reduce the supersaturation of FeCO3 as a result of lesser amount of dissolved CO2 in the water.
causing the molecules to vibrate. When the vibrations become strong enough for the molecules to move around and pass other molecules, the compound that is being heated up starts to melt and become a liquid. In this lab, five different ratios of two chemical solids, Urea and trans¬-cinnamic acid, were heated up in a Mel Temp apparatus until the final melting point was achieved. Each substance started as a solid in a capillary tube and when they reached the…
This experiment was performed in order to demonstrate the principles of nitration through electrophilic aromatic substitution. It also examined the effects of bromine on an aromatic ring, ortho-para vs. meso directing. The second experiment was performed to compare the reaction rates of electrophilic aromatic bromination with different arenes.
Data and Results
In the gas chromatogram, there are two large peaks. The first peak at 0.653 minutes with an area of 133,352 uV per second, 31.95% of…
a. Potential Rating or Scoring Errors
The following are some of the commonly occurring errors:
o Halo effect – tendency to allow a positive (or desirable) quality, trait, or feature of an individual to enhance the appraisal ratings
o Horn effect – tendency to allow a negative (or undesirable) quality, trait, or feature of an individual to taint the appraisal ratings
o Rater Bias – tendency to allow individual differences (or personal characteristics) such as age, race, religion, disability, and…
Enzymes have a huge effect on the human body and other organisms. Enzymes are catalysts that are used to accelerate the reaction process by lowering the activation energy. For this experiment the catechol oxidase was extracted from potatoes. The enzyme is called catechol oxidase because the oxygen is reacting to catechol. Catechol oxidase causes the browning of the fruits and vegetables because the compound is toxic to the bacteria. The purpose of this experiment is to…
This lab will be driven by the research question, do changes in temperature (4oC, 25oC, 37oC, 50oC and 70oC) have an effect on the reaction rate of enzyme amylase and starch?
As the temperature increases, the enzyme will have a quicker reaction time with the starch, therefore when met with the iodine, no change will occur in the colour of the solution, showing that the starch is now absent. The enzyme amylase and starch solution in 4oC and 25oC will change the colour…
What are enzymes and how do they affect reactions? Enzymes force reactions, in cells, to maintain a speed necessary for life. Enzymes can also be considered catalysts because they require the reactions to arise faster without themselves changing. For this experiment, the substrate in the enzymatic reaction was sucrase, and it will be causing sucrose to change resulting in the following equation:
Sucrose → Glucose + Fructose
Where the arrow is in the equation indicates the enzyme,…