Scyc 20 Lab Report

The techniques used in this lab are quantitative transfer and vacuum filtration with the reaction of 8.001 grams of copper (II) sulfate, CuSO4, and 2.0153 grams of iron powder, Fe. The goal of this experiment was to determine the product of copper (II) sulfate with iron. The reaction occurred and 2.4469 grams of solid copper, Cu, precipitated; therefore, showing that the limiting reagent was iron. The iron oxidation state was iron (II) because iron (II) sulfate was formed during the reaction. The percent yield of the reaction was 106.7%.

The Panasonic Lumix DMC TS30 comes with a resolution of 16.10 Megapixels with a Sensor size of 1/2.33 inch. The Lens flaunts a 4.00x zoom (25-100mm eq) quality, enabling distant object to appear closer through the lens. With an ISO of 100-1600 and a Shutter speed of 60 (minimum) and 1/1300 (maximum), the Panasonic Camera comes with the dimensions of 4.1 x 2.3 x 0.8 in.(104 x 58 x 20 mm). the Camera weighs about 5.1 oz ((144 g)includes batteries).

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.

Experiment #6 allows parents to see how much their child is interested in toys or objects. Counting how many seconds the infant stares at them can help reveal what is inside his mind. In this experiment, parents observe the length of time the infant pays attention to a given toy before he looks away from the object. The baby is introduced to certain toys several times until the baby loses interest, or habituates, to them. This simple experiment can tell parents how an infant’s brain works and how this may affect his learning skills in the future.

The objective of this experiment was to manipulate the state of copper by taking copper through four different forms and to observe and understand the method behind each reaction. The transformations include starting from 0.1588g of Copper(II) Chloride dihydrate to produce Copper(II) hydroxide. Copper(II) Chloride dihydrate was dissolved in water forming a light blue colour and Sodium hydroxide was added in order to form Copper(II) hydroxide a dark blue precipitate. In this reaction Sodium Chloride is soluble and Copper hydroxide is insoluble in water, therefore, forms precipitate. When the dark blue Copper(II) hydroxide was then, heated it decomposed to form Copper(II) Oxide, a black solid. Copper(II) oxide, an insoluble metal oxide, and sulfuric acid reacted to produced Copper(II) sulfate, a soluble salt and blue in colour. Copper(II) sulfate was

Introduction: The purpose of this lab is to find the unknown concentration of Cu+2 by comparing the solution to a set of standard concentrations, different known concentrations, which are prepared by diluting approximately 2.5 grams of copper (II) sulfate pentahydrate. A concentration is the amount of solute relative to the volume of a solution, the more solute the more concentrated the solution will be. Concentrations are reported using molarity (M) which is the moles of the solute by the volume of solution in liters.

The molar concentrations of copper (II) sulfate solutions A, B, and C were 0.46 M, 1.00 M, and 0.20 M. These values were obtained by creating a calibration curve using the molar concentrations and photoresistor voltage drops for solutions 1 through 5. The quadratic equation of the calibration curve was used in conjunction with the photoresistor voltages for solutions A, B and C to predict the molar concentrations of solutions A, B, and C.

The correct theoretical empirical formula for the Hydrous Copper Sulfate solution is CuSO4 * 5H2O. From the data and results of calculation from this experiment, the empirical formula that was found during the process is CuSO4 * 5H2O. The sum of the percentage from the water, copper, and sulfate found in the solution added up to be 102%, a little over the normal 100%. From the least to greatest percentage of error, copper (Cu) with 2.291%, water (H2O) with 2.77%, and sulfate (SO4) with the greatest percentage of error of 3.691%. Overall, the percentage of error were made during this lab is acceptable. There could had been many type of error made during the process of this lab. One of the primary error that is most likely to be made while determining

The molar absorptivity, found by graphing a line of best fit through the absorbance vs. concentration points, was 5.456L/mol·cm. Using that, the path length (1 cm), and the absorbance (0.912), the concentration of the unknown solution, by plugging the acquired data into the equation A=ecl, was found to be 0.199M. To prepare 500.0 mL of 0.50 M CuSO4(aq), 0.25 mol, or 39.9g, CuSO4(s) must be added to 0.25L H2O(l). The absorbance for 0.25 M can be calculated by plugging the concentration into Beer’s

Eight standard solutions were tested using a cuvette and a spectrophotometer. Two spectra were ultimately saved, one for the Red 40 and one for the Blue 1. 3mL of a standard solution was added to a cuvette and was prepared for data collection. Enough solution was added to obtain viable results. The cuvette was placed in the SpectroVis accordingly. The absorbance of the sample was recorded from 380-900nm, and the wavelength of maximum absorbency was determined along with the absorbance at the λmax. These steps were repeated to determine the λmax and absorbance for each of the eight standard solutions. The results were recorded and the spectrum was saved.

The objective of this experiment was to determine the identification of the unknown copper (II) salt. The unknown salt was found to be copper (II) bromide. A calibration curve for copper (II) sulfate pentahydrate in Trial 1 was found by measuring the absorbance of the four different dilutions and the original solution as shown in Table I. The concentration of each solution was then calculated by multiplying the amount of moles in the original solution by the amount of original solution used in L then dividing by 0.100 L. The concentrations of each solution are shown in Table I. The calibration curve for Trial 1 was created by graphing the concentration on the x axis and the absorbance on the y axis, then finding a line of best fit equation through the origin as shown in Figure 1. This process was repeated to create another table of absorbance and concentrations for each solution for

The Objectives for Part C of the experiment include (1) To calculate the dilution necessary for various molarities of a specific solution (2) To use these calculations to prepare such solutions (3) To use such solutions to understand the relationship between the concentration of a dilution

Modern Programming Practices (MPP) is the most critical course that I had studied in Maharishi

introducing the parabolic profile for laminar flow in a pipe results in α = 2, for turbulent flow, we have α ≈ 1.0 and for uniform flow, α = 1.

Abstract - In this paper, a ground station for receiving images from NOAA weather satellites designed with the help of the cheapest SDR option Real Tech Software Defined Radio (RTL SDR), combined with an easy Homemade Quadrifilar Helix QFH antenna, . The software component of the station is built with GNU Radio, an open source tool with a rich set of signal processing features, Gpredict, a satellites tracker and Wxtoimg, a free weather satellite decoding program which can decode the APT signal