Dylan McFarland 9/15/14 Honors Chemistry Richardson Lab: Measuring the Density of Pennies Pre-Lab Questions: 1. The equation that relates density‚ mass‚ and volume is: density = mass / volume. 2. All substances have unique densities‚ so if you are able to find the density of a substance‚ you can properly identify it. 3. We measure irregular-shaped objects with the use of water displacement because it would be nearly impossible to get the exact measurements
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Drilling Mud density or specific gravity is the most significant measurement required and no reliable visual estimate exists. The mud density or specific gravity must be accurately measured in order to successfully drill a well hole. The most accurate measurement of mud density is made by using the Mud Balance. Viscosity is the resistance to flow offered by a fluid. The term is loosely applied as the flow properties of drilling mud. The relative viscosity‚ or the cuttings carrying ability of the
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CaCl2*2H2O)(1mol Na2CO3/1mol CaCl2*2H2O)(106g Na2CO3/1mol Na2CO3) = 0.72g Na2CO3. The final‚ when its dried in the paper filtered weighed at 1.6 grams. Experiment and Observations: As I performed the lab‚ I had to retrieve all my equipment’s from my labpaq. As I started to setup‚ I had to weigh out 1.0 gram of CaCl2*2H2O on the digital scale. After it was weighed‚ it was added to the 100 mL beaker and 25 mL of distilled was added and stirred. Next‚ I had to figure out the amount of the second reactant
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still the driving force in tank gauging. Continuous development means: • • • • • State of the art technology Low maintenance Easy to handle Flexible use of options Communication to any system Comprehensive inventory information Characteristics Measuring range 0 - 27‚000 mm (0 - 88 ft) 0 - 37‚000 mm (0 - 121 ft) Accuracy Level ± 1 mm (± 0.04”) * Housing material Stainless Steel AISI 316 Cast aluminum Operating pressure up to 6 bar / 0.6 MPa (90 psi) up to 40 bar / 4 MPa (600 psi) Mounting 2” flange
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With the use of the ruler‚ vernier caliper‚ micrometer caliper and electronic gram scale‚ the group was able to acquire different sets of measurements by measuring the sphere of unknown composition. The group then was able to compute its mean diameter‚ average deviation‚ average deviation of the mean‚ volume‚ mass and % percent error for density in SI unit. Then‚ the members of the group measured the thumb of each other using the ruler and recorded the data in inches. 1. Introduction During
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Careful attention to the accuracy and degree of uncertainty of each measuring device is necessary for proper data collection. Significant figures are used to record or report measurements accurately. * This laboratory activity will give you the opportunity to get more familiar with some of the basic measuring devices that are common in chemistry labs. You will use the measurements performed in this lab to calculate density. Procedure * Access the virtual lab and complete the experiments
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pack on each other resulting in a the powder having a high porosity. High density and low porosity results in free flowing particles. Micromeritic Property of Starch The experiment obtained Starch to have a bulk density of 0.48g/ml‚ i.e. 0.48g of Starch occupies 1ml of water. This value represented the density of starch incorporating the voids. The tapped density was found to be 0.60g/ml. This value represented the density of starch excluding the voids and intra- particle pores greater than molecular
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multiple factors that affect its value. The more the measurement is taken the measurements average is closer to the actual value. Other factors include the instruments calibration‚ cleanliness of the inside of the measuring arms and human error in reading the measurements off of the measuring devices. For this experiment‚ we followed the procedures as indicated in the lab manual. Data Copper Rod Measurements Trial 1 2 3 4 Length (m) 0.601 0.6 0.601 0.6 Diameter (caliper-m) 0.0006 0.00065
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of the measuring cylinder * Hole in the lid‚ possible escape route for gas or splash-back * The polystyrene cup felt warm during the reaction By extrapolating the graph we can estimate what the rise in temperature would have been if the reaction had taken place instantaneously. I can conclude that if the reaction had taken place instantaneously‚ the solution would have reached a temperature of 450C. * Calculate mass of the copper sulphate solution: mass = volume x density = 25 x
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the precision of each of their measurements; therefore‚ multiple instruments were used in three out of the four labs. Method: In the first part of the lab‚ Rulers vs. Calipers‚ the experimenters were asked to compare the precision and accuracy measuring the same objects with a ruler and a caliper. Materials: One marble One washer String One 8 oz styrofoam cup Procedures: Step one: The experimenters used the ruler to measure the diameter of the marble then recorded the measurement‚ along with
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