Volume One

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    Page 1 of 50 - About 500 Essays
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    Theory When preforming an experiment using the scientific process one of the most essential components is comparing theory to actual measurements. This relies on the accuracy and uncertainty of the measurement itself. If an actual measurement proves the theory wrong it you must know the uncertainty so you can try to figure out where the error took place. Uncertainty can arise from a few different areas; they are statistical variation, measurement precision, or systematic error. Systematic error is in most cases human error like not measuring the experiment with proper tools or failing to account for external factors before performing the experiment. On the other hand statistical variation and measurement uncertainty cannot be avoided in…

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    Chem 115 Lab Report

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    Lab 4 in Chem 115 has three parts all calculating density. In part one, a 100 mL beaker, a volumetric pipet, and an analytical scale were obtained. To begin, the mass of the beaker was taken using an analytical scale. Then, 10.0 mL of an unknown liquid was transfered to the beaker using the volumetric pipet. Next, the mass of the beaker and liqiud was recorded along with the letter identifying the unknown liquid. By subtracting the mass of the 100 mL beaker from the mass of the beaker and…

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    The Purpose of lab 3.5 The Density of Solids was to use density to determine if the slab is the same substance as one of the cubes. In order to do so, the mass of each of the two cubes, and the slab were taken, and the dimensions of each were accurately measured. The dimensions were multiplied to find the volume, and the volume and mass were then used to find a comparable value, the density of each object. The mass and volume of an irregularly shaped stone were then found, and from this, the…

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    prisms, and one cube to make a pair of glasses for the two Ping-Pong ball model. We choose these shapes because, we both knew how to find the surface area and volume of them to the point where it wasn’t easy, but it was not super difficult. We felt safe using these shapes. When put together they also can be taped together perfectly to resemble a pair of glasses. We thought that this would be a great model to make because, for one thing my partner and I both wear glasses so we thought that it…

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    Report: Molar Volume of a Gas at STP Abstract: The purpose of this experiment is to find out how to experimentally determine what the volume of a mole of H₂(g) is at STP by using gas laws. The hypothesis for the experiment is that if H₂(g) is produced at RT and STP, Avogadro’s law can be used to experimentally determine the amount of H₂(g) because equal gases at the same pressure and temperature have the same amount of particles. In order to find the molar volume, hydrogen gas was…

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    The lab conducted was to investigate the density of not only copper but also diet and non-diet soda. Techniques used in the experiment included water-displacement, measuring copper’s dimensions, and using volumetric pipettes to measure out specific soda volumes. Beginning Question(s): How does the use of two experimental methods, improve the chances of calculating the density of copper? How does the density of non-diet soda compare to that of diet soda measured at different volumes? Safety…

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    Volumetric Pipette Lab

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    Aim The aim of this practical is to measure the effect of volume, density and temperature. It is also help to be familiar with variety of common laboratory technique. Materials Weighting scale Container with lids 20 and 10 ml Volumetric pipette Beaker Thermometer Test Tubes Volumetric flask Natural Rubber Pipette Filler Micropipette tips Tips boxes Method There are two pipette, choose one which you using in whole practical. Label and weight accurately, to 4 decimal places. Collect…

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    Clip-In Method Clips fasten the extensions to your hair in the clip-in installation method. While it is ideal as a temporary style option since you can quickly remove these extensions without problems, this method of installation is not always the right choice for thin hair, as the clips are difficult to hide. 2. Strand-by-Strand Method The stylist attaches small hair extensions one at a time to your natural hair. How many extensions the stylist installs depends on the desired results. A…

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    approximately thirty thousand deliverables. Fulfillment Operation would extensively use planning, organization, leading and controlling in its operations. Much of the fulfillment would be processed through our automated channel if there were no issues involved. When we would get these exceptions, we would push these requests to our manual workflow. Our associates would quality check the work to verify all documents were generated and we would prevent privacy breaches. The department operated…

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    Calorimetry Volume Lab

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    In the volume lab, we found that the large graduated cylinder was the most accurate because it had less percent error when measuring the density of water over all of the other measuring tools.In this lab, we measured water from pipettes including volumetric and graduated pipettes, graduated cylinders, erlenmeyer flasks, and beakers to figure out the mass and density. These measurements were then used to calculate the percent error. We completed these measurements by measuring the volume of the…

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