Determining the Density of Plastics 1) Introduction ⦁ a) Purpose: Determine density of different plastics ⦁ b) Hypothesis: If density is related to the ratio of mass to volume‚ then density can be calculated by using the formula D=M/V. i. c) Background: Density is the physical property that can be used to help identify substances. D=M/V. mass= found using a balanc and labeled in grams and volume=graduated cylinder or taking ( lxwxh ) measured in mL or cm3 2) Materials ⦁ a) List -graduated
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Lab 34-2: 1. The general trend for bone density as a person ages is a steady decline as years pass. This study shows that every decade‚ males and females bone density slowly decreases. 2. Between the ages of 20-50 females lose about 11% of their bone density and males lose about 13% of their bone density. Males do in fact lose more density then females but they lose it at a more stable and steady rate. Females lose less density at more unstable rate going from about 6% (40-50) to about 9%
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Density of Metals Lab 1. Purpose The purpose of this lab was answered in 4 questions‚ and their answers are here shown. The density of the metals we used were 5g/cm3. The density of a metal piece does not depend on its size‚ it depends on the total mass and total volume. The most accurate way of determining density is dividing mass by volume. You can’t identify metals by their density. It can help you narrow the options down‚ but you can’t identify a metal by using only its density. 2. Question
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Campagnolo Chemistry H September 24‚ 2013 Lab on Density of Four Metals Conclusion In this lab we studied the densities of four different metals using a caliper‚ a digital scale‚ and a calculator. Three metals were pure elements like copper‚ iron‚ and aluminum. The fourth metal was an alloy which was brass. The purposes of this lab were to demonstrate that different metal elements have different densities‚ and that alloys have densities somewhere between those elements that compose them. We
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Difference of Density and Specific Gravity Lab Report Class 237 Performed: October 1‚ 2013 Due: October 7‚ 2013 Introduction Purpose: The Determining Density and Specific Gravity lab tests student capabilities of using equipment to measure volume‚ mass‚ density‚ and specific gravity of solids and liquids with accuracy. Equipment: Students use the electronic balance to measure the mass of metals‚ pipettes‚ and pipettes holding
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Soil Porosity & Density Objective: To determine if the porosity of soil is related to the density. Hypothesis: I think that that the porosity of soil is related to the density because the higher the density of the sand the lower the porosity of the sand‚ which are both componets for the water to rise. Materials: • Sand and Loam samples • 2 large containers • Plastic cups • Water • Scale Procedure: Loam 1) The loam without the water was fresh ‚ it had different shades of black‚ and
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Lab Conclusion on Density In the lab of measuring density‚ precision and accuracy are very key components. Precision is the exactness of a measurement or good technique. Now accuracy is the value that we measured compared to the true value that the book has. Precision and accuracy are important because you need to have good technique and have your value close to the true value to minimize the error analysis. If you do these steps correctly you are a good chemist but if you do them poorly they
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Lab Report: [Liquid Density] Your Name: ______________________________________________________________ 1 Purpose of this Lab What is the goal of this lab? What question are you trying to answer‚ or what problem are you trying to explain? | | |
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Density of a regular shaped object Object Mass / g ± 0.05 g * Length / cm ± 0.003 cm ** Width / cm ± 0.003 cm ** Height / cm ± 0.003 cm ** T1 T2 T3 T4 T5 T1 T2 T3 T4 T5 T1 T2 T3 T4 T5 A 44.9 5.975 5.980 5.980 5.980 5.975 1.500 1.500 1.500 1.500 1.500 0.600 0.600 0.605 0.600 0.600 B 16.5 4.400 4.395 4.400 4.395 4.395 1.500 1.500 1.495 1.500 1.495 0.300 0.305 0.305 0.300 0.300 C 22.5 3.000 2.995 3.000 3.000 3.000 1.500 1.505 1.495 1.500 1.500 0.600 0.595 0.600 0.595 0.595 D 22.6 6.005 6
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Density of Solutions Lab Purpose: The purpose of this lab was to find out the densities of the known and unknown Solutions that were given to us. This can be found by dividing the mass by the volume of the Solutions. The other purpose of this lab was to perfect our skills in finding out the percentage error‚ uncertainties‚ random error‚ and systematic error. Variables: Independent: Mass Percentage of Solution (KCl); Unknown Solution; Temperature Dependent: Density Materials: 10.00 mL
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