Phosphoric acid

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…

CHAPTER 1 INTRODUCTION 1.1. Introduction Caprolactam (CPL) is an organic compound with the formula (CH2)5C(O)NH. This colourless solid is a lactam or a cyclic amide of caproic acid. Caprolactam was first described in the late 1800s by Gabriel and Mass, when it was prepared by the cyclization of ε-aminocaproic acid, the product of the hydrolysis of caprolactam. In the months after Schlack’s discovery the first stocking were produced from Perlon. All the Perlon produced went to the war effort.…

reaction with vinegar? Aim: To find out how different amounts of baking soda (soda bicarbonate) affect the length of its chemical reaction with vinegar (acetic acid). Hypothesis: If the amount of baking soda is increased then the length of its reaction with vinegar will increase because there will be more soda bicarbonate for the acetic acid to react with. Equipment:  Baking Soda  Vinegar  5 glasses  Safety glasses  Measuring Spoons  Stopwatch  Scale Variables: -Independent variable:…

NIMOTOP INJECTION Nimodipine 0.02% solution contains the following excipients: Ethanol 96%, Macrogol 400, sodium citrate, citric acid, Water for Injections Ph. Eur. These excipients consist of properties that aim towards the proper functionality of Nimotop. They consist of inherent stabilities that cause little or no effect in the stability of the drug and they do not have any acute or chronic toxicity. The excipients are also added into the Nimodipine 0.02% solution to enhance the biological…

The slide was washed, blot, and examine under microspore. C. ACID FAST STAINING: The lipoid capsule of the acid – fast organism takes up carbolfuchsim and resists decolorizatin with a dilute acid rinse. The lipoid capsule of the mycobacterium is of such high molecular weight that it is waxy at room temperature and successful penetration by the aqueous based staining solutions…

as ether and benzene. Characteristics of Lipids:  Amphiphatic  Naturally occurring  Soluble in organic solvents but insoluble in water  Undergo saponification  Undergo emulsification Classification and biological functions of Lipids: • Fatty Acids:  Energy sources  Biosynthetic precursors • Triglycerols:  Storage  Transport • Phosphoglycerides:  Membranes components • Ketone bodies:  Energy sources • Sphingolipids:  Membrane components • Eicosanoids:  Modulators of physiological…

Preparation of polyallyl polyether of allyl sucrose Abstract: Allyl sucrose is prepared by using sucrose, allyl chloride, NaOH and DMSO. This novel method is less time consuming and required less solvent than other methods. The product is characterized by Fourier Transform Infrared (FT – IR), 1H-NMR and MASS Spectrometer. Key words: allyl sucrose, allyl chloride, sucrose Introduction: Allyl sucrose is used for…

Introduction Experiment five was a two-part experiment meant to have us practice our skills and then use those skills in actual data collection and analysis. In part one we used a sample of sodium saccharinate combined with a sample of a metal halide salt, our group used copper(II) chloride. The combination of these two samples allowed for the synthesis of a metal complex. In part two of the experiment we used a procedure similar to part one in order to collect phosphorus out of a sample of…

Acid rain is a rain that is more acidic (has more hydrogen ions) compared to normal rain and it has serious negative effects to nature and people. It is a mixture of wet and dry depositon that contain high amounts of nitric and sulfuric acids (see Figure 1). These gases come from electric generation, factories, forest fires, burning fossil fuels and acid rain forms when these gases react with water, oxygen and air. Wet deposition happens when acid chemicals fall to the ground in a rain or snow…

Conclusion: The general conclusion that I was able to produce about the effects of salt on the boiling point temperature of water is that with the addition of salt, the boiling point temperature of water increases. The results of the lab experiment do agree with my predictions and I can accept my initial hypothesis. However, I believe the data would be more consistent and solid had 2M and 4M of NaCl had been included in the experiment, rather than jumping from 1M to 3M to 5M. Discussion: For…