Chemical equilibrium

a site upstream from Goomboora Park. This site will be referred to as, Site 1. Measurements from Site 1 will be analysed and compared to water qualities recorded from previous years (2012, 2013, 2014, 2015). Water is a triatomic molecule, with a chemical formula of H20. At a temperature…

Danika Ng CHEM 1252 L Exp 12: Thermodynamic Analysis of Chemical Equilibria INTRODUCTION The reaction being done with borax and HCl is an acid base reaction. The K constant expression of the reaction is Kc = [Na^+][B4O7^-2]. A titration is needed for this experiment because when a strong acid with a known concentration is added to a weak base, the unknown concentration of the weak base can be found, which can then find the moles of the weak base, which can then find the Kc. The first law of…

TiV photocatalyst was prepared by sol–gel method using tetra-n-butyl titanate as the precursor. Solution A was prepared by dissolving 17 mL TBT in 30 mL anhydrous ethanol with stirring (300 rpm) for 30 min. The other solution that contained 28.35 mL anhydrous ethanol, 7.25 mL deionized water and 20 mL 3 M acetic acid was slowly added into the above solution with magnetic stirring at room temperature. The prepared mixture was further hydrolyzed for 60 min with stirring until the transparent sol…

not entirely known, but have caught the consideration of numerous scientists. There are different types of kidney stones, each with different chemical structures. The formation of different types of kidney stones is dependent on the chemical nature of the stone, or precipitate. The solubility of precipitate, its concentration, and the presence of other chemicals are all characteristics that are related to the…

There are thousands of diverse amylase and each has different optimal temperatures in which they complete their reaction faster and for this case the percentage used was 1% bacterial amylase and 3% Fungal was used. In order to find the optimal temperature we had to conduct an experiment on this two amylases. By observing the effect temperature has on the amylases we found the optimal temperature. As the temperature increases the reaction the amylase is undergoing increases therefore the…

different. The products or by-products or intermediate products of these reactions are very much useful in laboratory synthesis, industry etc. here we will discuss some very much important reactions which are very important for producing some useful chemical products.  Reactions of aldehyde and ketones – Aldehydes and ketones response to many famous name reactions like Aldol condensation, Benzoin condensation, Cannizaro reaction, Pinacol-Pinacolone rearrangement, Beckmann rearrangement,…

each molecule. (Fig. 1). We set the coupling strength between the nearest atoms in the electrodes t=1.0 eV and between the molecule and the electrodes tc=1.25 eV according to [37]. The electron-phonon coupling strength D is set to 0.005 eV. At equilibrium state,…

about one or more single bonds. The conformations of a molecule are those arrangements in space of the atoms which are not superimposeable upon each other. The basic idea behind conformational analysis is that molecules will have certain physical and chemical and thermodynamic properties that are dependent on the preferred conformations. in the modern chemistry, where it can lead to significant improvement in the understanding of more complex system. theoretical calculations were proved to give…

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) ∆G^o=61770-67.32 T This reaction above is highly endothermic which is favored by low pressure but, requires a higher temperature. A reverse…

The theoretical yield of acetylsalicylic acid in grams that should be obtained from the synthesis is 3.96 g. The closest experimental yield was obtained without using a catalyst for the reaction; with a yield of 3.67 g (93%) of crude acetylsalicylic acid and a yield of 3.39 g (86%) of recrystallized acetylsalicylic acid. These results are relatively accurate. Similar results were obtained for the experimental yield of the reaction catalysed by concentrated sodium hydroxide; with a yield of 3.38…