Both physicists and chemists have investigated the CO2 anion extensively over the past few decades because of its importance in atmospheric chemistry, gas lasers, and a multitude of different industrial applications. It has been observed in a variety of experimental processes such as electron collisions and high-energy applications. As is well-known, electrons cannot permanently attach to the CO2 molecule; as such, all CO¬2 anion states are inherently metastable and have finite lifetimes. Despite the many studies, both experimental and theoretical, there are still a number of unanswered questions, especially concerning the relationship between short-lived and long-lived temporary anion states. Direct electron attachment to the CO2 molecule produces only short-lived anion states with lifetimes in the femtosecond range. These short- lived species consist most importantly of the low lying anionic states 2Πu and 2Σg+ 1–6. They are the main contributor to the electron scattering from neutral CO2. The 2Σg+ virtual state is responsible for the zero-energy peak in scattering experiments with energies for electron scattering below 1eV, while the 2Πu resonance state can be attributed to the observed peak in scattering cross sections at about 3.8eV. Long-lived CO2 anion states on the other hand, have been observed with lifetimes in the microsecond, even millisecond range7,8. They can be produced in processes such as double electron attachment to CO2+ ions9,10, sputtering techniques11,
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Experimental and Computation Vibration-Rotation Spectroscopy for Carbon Monoxide Through the Use of High-Resolution Infrared (IR) Spectra
The hypothesis about the CO2 angle will change the speed of the car was, rejected. The hypothesis was that if a Pinewood derby car had CO2 inserted at a 20 degree angle, then the 20 degree angle would work best because the angle would keep enough thrust power and keep the car on the track. However, the 20 degree angle was the second best because the 180 degree angle had more thrust power to it then the 20 degree angle. The control group was the 180 degree angle and it’s average was 1.33 second. The 45 degree angle was the longest with an average of 2 seconds. The 20 degree angle or second experimental group had an average of 1.67 seconds. I got these results because each angle that got farther from strait started to lose the amount of thrust that the 180 degree angle had. So if I tried it with a 90 degree angle then the car wouldn’t be moving at all.
The goal of this lab was to determine the amount of grams of sodium bicarbonate (NaHCO3) required to produce enough CO2 gas to completely fill the lab and also how many Alka-Seltzer tablets that would equate to. This was done by collecting CO2 gas by inverting a buret and submerging it under water in order to calculate the volume of CO2 released from a fragment of Alka-Seltzer tablet. The main component of Alka-Seltzer is sodium bicarbonate, used to neutralize excess stomach acid during illness through the following reaction that generates CO2:
a. P) Carbon monoxide molecules happen to be just the right size and shape, and happen to have just the right chemical properties, to fit neatly into cavities within hemoglobin molecules in blood that are normally reserved for oxygen molecules.
Fullerenes are molecules composed entirely of carbon in the form of a hallow sphere, ellipsoid, tube, or plane. In this experiment, the purpose is to use cyclic voltammetry to infer about the electron transfer in MOs of fullerenes and understand orbital energy and composition. The first part of the experiment is an electrochemical characterization of C60. A sample of C60 ¬is dissolved and transferred into an electrochemical cell. Cyclic voltammetry, a potential wave form is used for determination of formal redox potentials, detection of chemical reactions that precede or follow the electrochemical reaction and evaluation of electron transfer kinetics.
The 13C NMR Spectrum reveals the chemical environments of the C-H bonds. In this experiment, the carbons were assigned a number, from C1 to C4. C4 appeared the most downfield because it was the most deshielded because it is double bonded directly to an O and thus the O pulls the most on electron density. C3 is the most upfield because it is not bonded directly to any electron withdrawing groups or electronegative atom. C1 is the second most deshielded because this carbon is involved in a double bond which draws electron density. C2 appears second most upfield because this carbon is single bonded to an oxygen, but it is not as electron pulling as C4 or C1 that is double
You should receive an inventory for the kegs and CO2 cartridge each month. If a location/department pays different deposits amounts to different venders, then you will have more than one inventory for that location/department.
A gas company is submitting an application to to drill a well on a former dairy farm. Which this dairy farm borders the state forest and the closest water treatment plant is twenty miles away. Should they allow this application. Yes they should approve this grant to drill the well.
Noble Gas is located in far right column of periodic table and is known for having full valence electron shell. Helium, Neon, Argon, Krypton, Xenon, and Radon are known Noble gases in the periodic table. All of those elements are odorless, colorless in standard condition. Ununoctium is the only synthetic element of Noble Gases. The name Noble Gas came from the translation from German noun Edelgas which implied that it is chemically very inert. Because Noble Gas elements have 8 valence electron and stable without any formation of compound, its first ionization energy is highest out of all the groups in periodic table.
2. Miller, F.; Wilkins, C. Infrared Spectra and Characteristic Frequencies of Inorganic Ions. Ph.D. Dissertation, Mellon Institute, Pittsburgh, PA, 1952.