Calibration curve

Discussion and Scientific Explanations Colors help most people describe what different objects look like. When white light hits an object, in most cases, the object will absorb all of the wavelengths, except for one group. This group of wavelengths is then reflected off of the objects. The cones and rods in our eyes will then pick up this wavelengths and then the brain sees them as “color”. The reason that solutions have colors is because electrons in the chemical’s 4d orbital are jumping…

because the concentration of water in the dilute aqueous solution is constant it can be written in the simple form of Fe+3(aq) + SCN-(aq)  Fe(SCN)+2(aq)[2]. In the experiment the stability constant was achieved by first creating a calibration curve. From the calibration curve data was taken and used in order to find the equilibrium concentrations, once that was found the stability constants were calculated with the following formula k=[Fe(SCN)+2eq]/[Fe+3eq][SCN-eq] and the average taken. The…

The purpose of the experiment was about recrystallization of crude ASA from crude ASA, then analyze the yield and melting point of Recrystallized product, test for Purity of Recrystallized ASA by using thin layer chromatography and analysis of Recrystallized Acetylsalicylic Acid by Spectroscopy to compare these results with another experiment about creating an Aspirin from Salicylic Acid. In this experiment, 0.1241 gram of Recrystallized ASA was produced from 1.1754 gram of Crude ASA and the…

The overall objective of the experiment was to find the concentration of phosphate by using spectroscopy. Dilutions of a phosphate working solution with a known concentration were made and their absorption lengths were found using the spectrometer in order to find the concentration of the unknown phosphate sample. INTRODUCTION The goal of the experiment was to find the concentration of an unknown water sample using several standard phosphate solutions’ absorbencies and Beer’s Law. Knowing the…

between these two values is the amount of moles that reacted with Vitamin C. The first day of the experiment (day 0), the concentration of Vitamin C was known, so this value has been added to the calibration curve. As the concentration of Vitamin C of the first day was a known concentration, the calibration curve was only a double check and the calculations where derived of the first day in order to minimalize systematic errors. Results Table 5.0: DATA COLLECTION of the colorimeter values…

Lab 3: Technology Name: Section: General Physic Lab 3 Date: 10/03/2017 Purpose The goal of this experiment was to learn how to apply computerized instruments in physics. In addition, this experiment aimed at enhancing practice on how to use three equipment in the lab: the rotary motion sensor, high resolution force sensor, and motion sensor. Further, this experiment sought to clarify the circumstances under which the instruments fail to comply with expectations. Results/Data Part 1: The…

found to be 96˚C by open capillary tube using microcontroller based melting point apparatus which is within the reported range of 94˚C to 97˚C. It complies with the standards thus indicating the purity of the drug sample. CALIBRATION CURVE OF KETOPROFEN: • Calibration curve of Ketoprofen in Ethanol Table 8: Absorbance values of ketoprofen in ethanol at 256nm CONCENTRATION(µg/ml) ABSORBANCE…

observed and recorded when a known pH is reached. In this his experiment we used methyl orange as indicator The consumed volume until specific pH allow us to know how much volume is required to reach the endpoint. •Visual identification from titration curve; the data are recorded after that small volume are added from buret until endpoint. Then graph pH vs volume added lets us know the volume consumed of titrant and then the alkalinity can be calculate. •Numerical differentiation of the…

Pantoprazole undergoes hepatic first pass metabolism , hence it shows poor bioavailability. The aim of study was to prepare and evaluate mucoadhesive tablet of pantoprazole using tamarind seed powder in combination with HPMC, magnesium oxide, and talc. Tamarind seed powder is used for dissolution enhancer (improve dissolution). Method: Six Formulations were developed with varying concentration of polymer like HPMC and other excipients like tamarind seed powder, magnesium oxide and lactose…

Determination of Most Advantageous Sequestering Agent By: Kayla Jeeter and Ashley Driscoll Chemistry 112-508 Abstract The creation and execution of this project served to determine what material is a better sequestering agent of the polycyclic aromatic hydrocarbons (PAHs) that are found in Texas’ water. Charcoal is currently the most typical agent used to sequester PAHs. In this experiment, two different Bentonite clays (zeolites) were synthesized, one magnetized and one not, to determine if…