Anthracene Case Study

Tilting the instruments of a known angle b and measuring the output voltage from the PSD, which is proportional to A, from Eq. (1) we calculate GS (Table 1). The measures made on the N-S component of the instrument are more reliable than those on the E-W one that was repaired at best by the OGS technical staff after the partial detachment of the moving mirror. The error associated to with the estimate is evaluated as the amplifier error, equal to 1% on the linearity of the response, plus the uncertainty on the voltmeter, equal to 0.05

The distance between the target and first focal point (fs) of the standard lens were measured to give χ. The focimeter equation〖[F〗_t= F_(s^2 ) x] was used to work out the correct power of the lenses (Ft). A graph was plotted with Ft being the Y value (in dioptres) and χ being the X variable (in metres). Fs2 remained constant.

& { 2872(25$\%$)} & { 2499(22$\%$)} & { 5795(26$\%$)} & { 5100(23$\%$)}\\ $N_{\omega\to\pi^0\gamma}^{\circ}$ & { 4487(15$\%$)} & { 3590(12$\%$)} & { 1978(6$\%$)} & { 1721(5$\%$)} & { 5846(9$\%$)} & { 5145(8$\%$)} \\ \hline $BR^{measured}_{\omega\to\pi^0\gamma}$ & \textcolor{red}{ 1.07} & \textcolor{red}{ 0.78} & \textcolor{red}{ 0.52} & \textcolor{red}{ 0.43} & \textcolor{red}{ 0.73} & \textcolor{red}{ 0.61} \\ ($\%$) & \textcolor{red}{ (15$\%$)} & \textcolor{red}{ (11$\%$)} & \textcolor{red}{ (6$\%$)} & \textcolor{red}{ (5$\%$)} & \textcolor{red}{ (9$\%$)} & \textcolor{red}{ (8$\%$)} \\ \hline & \multicolumn{6}{c|} {\bf $\sigma_{dedp-sys}=\sigma^{av}_{rms}\times(1-\sigma_{fit-sys}^{rel})$ } \\ \hline \end{tabular} \caption[The standard deviation $\sigma^{av}_{rms}$ in ${N_{\omega\to\pi^0\gamma}}^{rec}$, ${N_{\omega\to\pi^0\gamma}}^{\circ}$ and $BR^{measured}_{\omega\to\pi^0\gamma}$ for the different energy-momentum conservation constraint are presented] { The standard deviation $\sigma^{av}_{rms}$ in ${N_{\omega\to\pi^0\gamma}}^{rec}$ and $BR^{measured}_{\omega\to\pi^0\gamma}$ for the different energy-momentum conservation

Also, it is seen that although with the traditional sum rules analysis , one obtains almost zero value for form factor $C_3^{N \Delta}(Q^2)$, the Monte Carlo analysis shows that this form factor is consistent with significant non-zero values. In the case of $C_4^{N \Delta}(Q^2)$, although the traditional sum rules analysis leads to a value that is significantly away from

FBARevised Physics 121 Fall 2014 Document #05 – Cycle 1 Review Sheet, Part 1 page 5 of

Based on this lab, FTIR spectroscopy affirmed functional groups present in Unknown 30A because it revealed specific transmittance bands for those functional

The goal of the experiment is to synthesize a bromohexane compound from 1-hexene and HBr(aq) under reflux conditions and use the silver nitrate and sodium iodide tests to determine if the product is a primary or secondary hydrocarbon. The heterogeneous reaction mixture contains 1-hexene, 48% HBr(aq), and tetrabutylammonium bromide and was heated to under reflux conditions. Heating under reflux means that the reaction mixture is heated at its boiling point so that the reaction can proceed at a faster rate. The attached reflux condenser allows volatile substances to return to the reaction flask so that no material is lost. Since alkenes are immiscible with concentrated HBr, tetrabutylammonium bromide is used as a phase-transfer catalyst.

Museum about WW1 By Mats Peletier V4A 1226 words Subject 1: Mustardgas Mustard gas, or sulfer mustard, was often used in ww1. It has the ability to form large blisters on exposed skin and in the lungs. Within 24 hours of exposure to mustard gas, victims experience intense itching and skin irritation, which gradually turns into large blisters filled with yellow fluid wherever the mustard gas contacted the skin. Mustard gas vapor easily penetrates clothing fabrics such as wool or cotton, so it is not only the exposed skin of victims that gets burned.

My essay will determine if a local chemical manufacturing plant is in compliance with OSHA Methylene Chloride, specializing in paint stripper for the DOD. Occupational health standard establishes requirements for employers to control occupational exposure to methylene chloride. Exposure may occur through inhalation, by absorption through the skin, or through contact with the skin. The standard requires that the employer establish a regulated area where exposure to airborne concentrations of methylene chloride exceeds or can be expected to exceed either the PEL or the STEL. Determine if the plant is using a soy-based stripper that do not contain methylene chloride, N-methylpyrrolidone, or other toxic solvents, when it comes to paint stripping

The purpose of this experiment was to learn about metal hydride reduction reactions. Therefore, the sodium borohydride reduction of the ketone, 9-fluorenone was performed to yield the secondary alcohol, 9-fluorenol. Reduction of an organic molecule usually corresponds to decreasing its oxygen content or increasing its hydrogen content. In order to achieve such a chemical change, sodium borohydride (NaBH4) is used as a reducing agent. There are other metal hydrides used in the reduction of carbonyl groups such as lithium aluminum hydride (LiAlH4).

This has led to the recent disclosure of several improved reaction protocols for the synthesis of DHPMs, either by modification of the classical one-pot Biginelli approach itself or by the development of novel, but more complex multistep strategies. 3.3.2. Alternative multistep

The last step in the traditional purification of borrelidin is reverse phase chromatography. In this process, the mobile phase is aqueous (polar), and the stationary phase is a non-aqueous (non-polar) solid. Any hydrophobic compound in the polar phase will adsorb to the stationary hydrophobic phase. The stationary column used here is a C18 bonded silica HPLC (High Performance Liquid Chromatography). After those three chromatography steps, only 2-3 mg of borrelidin were obtained, in comparison to the amount obtained through the chemoselective

The letter A stands for atomic properties of Arsenic. Arsenic’s atomic number is 33, and Its atomic mass is 74.9216amu. Arsenic is a metalloid, which means it has properties of both nonmetals and metals. This element is also a semiconductor. Arsenic has 8 Isotopes and Its density is 5.72 g/cm3.

Scheme: Reagents and conditions- a) K2CO3/MDC, 6h; b) TEA/MDC, 4h; c) TFA, 2h; d) 7a-j substituted benzyl bromides, K2CO3/MDC, 8h General procedure for the preparation of

Chemical warfare is involved in a lot of war battles, weapons and power. In the past few centuries there has been a lot of wars such as WWI and Nuclear Warfare. Thousands of people have died in the past centuries due to all of these big wars going on around the world. Governments have tried to put a stop to these wars but they are fighting for their right of freedom. Till this day there are still wars going on to get their right of freedom.