The uniqueness of water’s high cohesion is directly associated with its molecules, which has very strong attraction forces between them. Knowing that water molecules are formed by two hydrogen atoms and one oxygen atom makes the
The word LASER is an acronym for Light Amplification by Stimulated Emission of Radiation. Albert Einstein first identified the natural process constituting the stimulated emission of radiation of laser beams
Hire a pro to write a paper under your requirements!
Win a special DISCOUNT!
Put in your e-mail and click the button with your lucky finger
N-Bromosuccinimide (NBS) is the reagent used commonly for this type of bromination as it provides a low concentration of molecular bromine. Each molecule of hydrogen bromide that is formed is converted into Br2 by NBS (Carey and Sunberg 371).
it reacts violently with water to give off hydrogen gas. It also reacts with acids and all non-acid metals like fluorine, nitrogen, chlorine and sulphur (Johnson, 2007, p73).
This element in the human body helps in improving the normal
29). His uncle Sir Andrew Ramsay was the famous geologist. After completion of early education at Glasgow Academy, Ramsay attended the University of Glasgow under the supervision of known chemist Thomas Anderson. He did his
Larger particles get stuck in the mucosal layer and cilia lining the upper trachea. This mucous upon swallowing becomes a part of the digestive tract thus the feeling of nausea. The remaining comparatively smaller particles
A reference electrode is used in conjunction with the ion selective electrode to measure the potential using an electrometer or pH meter. The Nernst equation relates electrode potential to the logarithmic concentration of the
ns are meant to ensure: health of the operators is not put at any risk and that they have adequate knowledge to undertake the process; procedures go on in a systematic manner without failures. (Mannan, 2005)
The scope of this Sop covers the Nitrogen purging of the Agilent Cary
The reflux condenser was removed after 3 minutes to allow all the produced acetic acid to evaporate. The reaction mixture was cooled in an ice bath, and water was adder to assist crystal formation. The obtained
To begin with, I will seek to identify the Blue Dangerous When Wet Placard with class 4 label code and UN 1836. From my knowledge and experience, the chemical may either be fulvic acid or humic acid. Secondly, I will ensure that I
Our energy wedge proposes simple ways of reducing carbon emission while at the same time ensuring efficient use of carbon energy.
The cheapest means of cutting carbon emission is by use of renewable resources, which is indicated by green in our energy wedge. The
The chemical compound is less dense than water, insoluble in water but soluble in diethyl ether, ethanol and mineral oil. In addition, as an aldehyde, cytral is normally involved in polymerization and self-condensation reactions. These reactions are generally
Research indicates that the earth’s atmosphere currently contains about 800 billion tons of carbon as carbon dioxide. The increasing emission of carbon dioxide and other greenhouse gases in the atmosphere is mainly attributed to production of
In addition, I needed to know whether since its discovery in 1659 industrialists use it in bulky form or disintegrate it into smaller components using other reagents to get what is useful for diverse purposes in the industry.
Since its discovery, NH4NO3 was majorly
A deionized water blank is run and the results of the sample titration and blank are compared.
5. The winemaker might want to know the amount of sugar remaining in wine as it nears the fermentation process
These forces occur between side chains of individual amino acids to facilitate a stable structure.
Hydrophobic Interactions: These are weak interactions that occur when hydrophobic side chains of amino
For this experiment a cuvette, calorimeter, and a color of your choice for the dye solution, A.To begin the experiment, clean the cuvette. Wash out the cuvette three times with water, and then three times with solution. Once
You will submit the softcopy (attachment) to [email protected]
This table should be typed. You may use any sources you wish (books, periodicals, Internet sites) to collect the data but these sources must be properly cited and the references
Such interactions are unfavorable because both methyl groups and hydrogens try to occupy the same space, which leads to destabilization of the molecule. This destabilization is expressed in a value of several kJ/mole.
The use of nitrates prevents the growth grow because of the negative charges of the gold that covered the upper part. Addition of the solution into melamine makes the layer jackets to fade. This effect
dded to an alkene, the hydrogen acid (H) becomes attached to the carbon that has less alkyl substituent, whereas the halide (X) group becomes attached to that carbon with increased alkyl substituent. This clearly implies that the atom of hydrogen is added to the carbon
Our group chose reduction of carbon emission by half in the next 50 years. The group members agreed unanimously that use of renewable sources for energy production forms the basis of carbon reduction by half. Use of nuclear energy
iving Bachelor of Science in chemistry from Lanzhou University in 1999 and subsequent master’s degree in organic chemistry from Shanghai Institute of Material Medica Chinese Academy of Sciences, she moved to Purdue in 2002. Here she joined professor Scott McLuckey’s research
It was early Greeks who tried to analyze and explain nature. In about 460BC, Democritus, a Greek philosopher first introduced the concept of matter. However after this, the theory almost laid dormant till in 1803, John Dalton proposed his
There have been studies on performance of solid state oxygen sensors before with emphasis on other metals and materials in construction and calibration. This paper, however, focuses on the use of silicon rubber as the main material in construction and
These in turn determine the physical tendencies of the metal. The periodic table presents these differences. Compounds are arranged such that elements with common chemical properties and reactions belong in
The identification would be based on either the hazard class 2.3 or 6.1 on the shipping paper or the label for POISON Inhalation Hazard. A white POISON GAS placard or a white POISON INHALATION HAZARD placard displayed on each side, and each end of the vehicle transporting the toxic substance is also critical to the identification process.
Allow about 5 minutes of reaction. Record your observations.
The contents of test-tubes A & B were centrifuged to obtain the solids. Half of the supernatants from A & B were transferred to A1, A2 and B2, B2 respectively. The precipitates in A & B were washed using 4ml of
The detection and chemical characterization of such impressions made on surfaces can be done using the concept of GC-MS machine. In addition, quantification is possible through the use of the Mass spectrometry method. It would not be possible to
It is highly ductile and very malleable, resistant to corrosion and has a low melting point (327.35 º C). It is also a poor conductor of electricity (ATSDR., 2008)
Naturally, Pb is a mixture of four isotopes: 208 Pb (51-53 %), 206
The trace evidence also was critical in identifying that the victim was actually at the scene. The fact that the evidence from the victim matched with that collected from the scene confirms an indubitable link amid the two.
Energy is basically the measurement of the amount of energy a food item produces when metabolized by the body (Kirschmann, 2007). Carbohydrates are composed of the elements carbon, hydrogen, and oxygen and are the main source of energy in the human body. Energy in the form of heat is produced when carbon combines with oxygen in the bloodstream.
Butyl ethyl ether, with melting point of -124°C and boiling point of 92.2°C at 1 atm, is known to be a moderately toxic substance upon ingestion and an irritant to skin and eyes upon contact or inhalation.
(2010) has potential carcinogenic and cytotoxic effects. A study by the authors on the effects of the substance on the liver was done, experimenting on rats. In the study, using 18 albino rats for a divergent period of three groups clearly indicated that