To determine the quality of soil, soil test should be conducted.
Among the components of soil earlier mentioned, pH is important and can be modified by addition of various chemicals. The pH of soil gives an indication as to how alkaline or acid
Therefore, 0.01 ppm = 0.01 volume of Ozone gas/106 volumes of air. Ppmv = (ppm/MW) × 22.4. Ppmv of ozone = 0.00467 ppmv O3. This means for every 1 million volume of air, there is 0.00467 volumes of Ozone (Dr Richards 01). Therefore, if 1 million volumes of
e the aryl sulfonyl ester obtained and further determine whether the reaction mechanism for the pyrolysis of the aryl sulfonate ester was either E1 or E2 depending on the gas chromatographic evaluation of the pyrolysis products. Synthesis of methyl N-acetylsulfanilate, an aryl
These are some of the characteristics of acids and bases. An acid is a substance that reacts with water to generate hydrogen ions while a base is a substance that reacts with water to generate hydroxide ions (Files, p. 1). This paper seeks to discuss the topic,
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The reaction conditions are great determinants of structures adopted by the coinage metal pyrazolates (Biswas & Ghosh, 2012). They may take the forms ranging from polymers, hexamers, and tetramers to trimers.
The current study focuses on spectroscopic
Standard curves were constructed from the ratio of absorbance of characteristic peaks. A trend line showing the least square fit helped to determine the ratio of concentrations in our unknown sample. The results
With the development of factories, with the development of automobiles, the refrigeration systems have been emitting certain substances in the environment, causing enough damage to prove costly both for the planet earth and its
The large industry of polymers has introduced conducting polymers that can be used in the solar cells to improve the energy transformation. Physical and chemical properties of polymers may vary based on
The NMR spectrometer is used. Several milliliters of acetylacetone (CH3OCH2COCH3) and ethyl acetoacetate (CH3CH2OCOCH2COCH3) together with two solvents are used in the experiment. The two solvents represent a non-polar and polar solvent because
l the labeled atoms of carbon to 14CO2 from glucose during the fermentation of ethanol, the original label has to be placed on C-3 or C-4 of the glucose as these are changed to the pyruvate carboxyl group.
This shows that phosphate was needed for the continuation of the
When dealing with a fire involving polymeric materials it should be clear that molten material drips from the source. It can be hazardous to the firefighters or the environmental health and safety professional especially if it is dripping from the ceiling. Thermal decompositions of polymeric material produce a vapor that initially diffuses on the surface of the polymer.
The ideal gas equation is denoted as:
Here, denotes the volume of the gas; P denotes the pressure; R is the constant that equals to 0.08206 L-atm/mol-K; specifies the number of moles of the gas and T denotes the absolute temp of the gas. It is pertinent to notice
From the concentration of Phenanthroline and iron, moles of Fe in the complex = 0.00004 while those of Phenanthroline = 0.00008, therefore mole ratio is 1:2 therefore n value is 2. The experimental n value for Phenanthroline in Fe (II) is 2 while that of ferrozine is
However, dissolving and dissociate depends on the placement of the original element in the periodic table. For instance, alkali salts all of them dissolve in water to give their respective salts, which is contrary to some of the salts formed by
logy involves capturing carbon dioxide from the atmosphere and other emitters and converting it into liquid substances that are deposited in the deep sea (Johansen, 2008). The controversy over the issue is of interest and the present work seeks to find out the positive and
Depression is one of the most prominent psychological disorders seen among the adults and teenagers. Even though depression is a psychological disorder, the major reason behind this problem is the irregularities in brain chemistry. Along with depression, irregularities in brain chemistry can cause anxiety, schizophrenia suicide tendency etc.
According to the paper, the pyrimidine-2-thione metal complexes, or its hydroxyl derivatives and pyrimidine-2-thiol tautomeric type has been analyzed for representative ligands. These complexes illustrate rich structural chemistry, biological properties and magnetic properties. The M/H reaction systems illustrates interesting complexes source.
umans by affecting metabolism through the central nervous system to make people more alert with a burst of energy (National Institutes of Health para. 1). It can make a person jittery, have difficulty in sleeping, and causes other effects like dehydration, heart palpitation, and
tly defined means the current medium of exchange as defined by government of a particular country, it is the officially-issued and officially-recognized legal tender of that country for people to buy and pay for the various goods and services they need in daily life. A key thing
Four variables are known to compose the ideal gas law and they are inter-dependent in that one of them can be calculated provided the other three are given. These variables are temperature, pressure, volume and amount in moles (Daniel, Goode and Ball 275).
The author of the paper states that another method of strengthening is called chemical strengthening. This is where the glass material is submerged into a potassium nitrate solution. The high-mass potassium molecule, which is bigger, then replaces the sodium molecule in the glass material.
Therefore, it rids the environment of methane, which is among the major gases that are significant for global warming via greenhouse effect (Khalil 34).
The company’s name is yet to be determined. It is a relatively young company with a bright
The project revisits the study that was initiated by Robert Boyle in the year 1662. In the study, gas exhibited a unique characteristic that made it possible to make various studies regarding the gases. The compressibility of gases gave a
The radiation from the isotopes destroys or weakens the targeted cells in the human body. Other isotopes are significant in the sterilization of the medical equipment and products. It is noteworthy that the utilization of
This simply implies that less chlorhexidine was left in the solution with flax than in cotton due to the fact that flax has adsorbed more chlorhexidine than cotton. It appears that flax can adsorb almost twice the amount of chlorhexidine cotton can adsorb. This suggests that
The results yielded a significant relationship between mass and volume at ‘0.05 level of significance’ and a corresponding p value of 0.0009. The results also identified an experimental density of 7.54 g/mL for the pennies
Methylene chloride is described as very hazardous substance in case of eye contact, ingestion, inhalation or skin contact. Personnel using this chemical should protect themselves from exposure by wearing laboratory coats, safety goggles, vapour respirators (approved/certified) and gloves. Exhaust ventilation and other engineering controls should be provided to keep the airborne concentrations of vapours below the threshold limit value (TLV).
The molarity of the unknown concentration of Cobalt (II) can be found by carrying out four trials at different wavelengths i.e. 430nm, 470nm, 565nm, and 635nm. This experiment will test which solutions of cobalt nitrate had sufficient concentrations.
The synthesis of complex molecules several reaction sequences may be required to achieve a target molecule. The quality of each procedure and its efficacy in producing desired products are a major consideration in any process (MSU). The
Evidence to this assertion is depicted under stoichiometry reactions (McLean, 3). These reactions were able to prove that a combination of elements was able to maintain their proportion after reacting with each other.
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Lead is known to be a health hazard for all humans. And it cannot be seen or smelled neither can it be tasted. Human beings are surrounded by lead within the environment, but this does not implicate that
There was also no way of explaining why different compounds reacted or combined in different proportions with various gases. Joseph Proust had analysed oxides of tin and came to the realization that the masses of tin dioxide and tin (II) oxide were made up of either 78.7% Sn
According to the report DFTD is a devastating cancerous sarcoma that has an effect on 30 to 50 percent of Tasmanian devils. The advancement of ulcerated tumors all around the head and jaws of the animal is found to be the characteristics of disease. These extend into malignant tumors that disperse from the face of animal to the whole body.
Spin quantum number ‘ms’ is related to spin of the electron that can be either clockwise or anticlockwise. Its value is +1/2 or -1/2 (Quantum Numbers and Electron Configurations, 2014).
Aufbau is a German word that means
For weak intermolecular forces, as in toluene and Xylene mixture remains constant, i.e. equal to the viscosity of the individual liquids.
Viscosity is inversely proportional to the intermolecular forces in a solution. Viscosity of water is