exactly the same way while accuracy indicates the closeness of the measurement to its true value. This experiment was used to determine the accuracy and precision of different volumetric measuring devices‚ as well as determining the density of an unknown metal. This lab was to help understand the application to volumetric measurements. Part 1: First‚ the next-to-smallest beaker was cleaned‚ dried‚ and weighed on the scale where it’s mass was determined. The container was then tared so the scale
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Significant Figures Lab Question 1: Which measurement gives the BEST value for the mass of a single paper clip? (BEST value includes both accuracy and precision) Claim: The measurement accepted as having the best value for the mass of a single paper clip was .411493 grams (Where best accounts for both accuracy and precision). This value was achieved by taking the average weight of a total of 30 paper clips‚ all of presumably varying weights. Evidence/Reasoning: The “best” value that maintains precision
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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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CHE 101 Experiment 1 Lab Techniques and Measurements Purpose: The purpose of this lab experiment is to review and learn the proper techniques for the measurement of length‚ mass and temperature. After this experiment I expect to have a better knowledge on how to correctly and efficiently measure for future lab experiments. Data: DATA TABLE #1 DATA TABLE#2- DATA TABLE#3- DATA TABLE #4 DATA TABLE #5 DATA TABLE #6
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Lab Report Purpose: The purpose of this lab experiment was to learn about the different densities of different kinds of metal. We used pennies made out of different metals to determine this. After we gather the data‚ it’ll be used to determine the metal used. Hypothesis: In the lab‚ I expect that the pennies before 1982 would be heavier than those that are after 1983 because the metal was initially changed because the earlier pennies cost more to make. So I think that since the heavier metal was
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Buoyancy Lab: Archimedes’ Principle TABLE OF CONTENTS CONTENTS …………….………….…………….……………………………..Page No. 1. Abstract…………………………….…………….………….…………….……………….. 3 2. Objective & Introduction ……….……………………………………….………………...4 3. Theory & Experimental Methods ……………………………….………………………...5 4. Results & Discussion …………………………………………………….………….............6 5. Conclusions..…………………………………………………….…………………………..7 6. References.…………………………………………………………………………..………8 7. Appendix ……………………………………………………….……………..………….…9
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the experimental density +/- uncertainty bar D is 11.2+/- 0.6 g/mL. The theoretical density information was founded in General Chemistry Laboratory Manual for CSU Bakersfield‚ CHEM 211‚ 3rd ed. Buschhaus‚ M. 2015. Each experimental identification described was strongly supported by there experimental densities +/- uncertainty and by only being off by 0.06. Both results come out in range of what is being searched for. The bars still have a little more play room with their densities and will still be
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Kharishma Patel BIO 3422-E Urine Analysis Lab Objective The objective of this experiment shall be to examine the effects of different types of fluids on the renal system including rate of urine production‚ pH‚ and specific gravity. Hypothesis The group drinking water will have the highest rate of urine production. The group that drinks water only when thirsty will have the lowest rate of urine production. The specific gravity of urine for all treatment groups will be around 1.000. The pH for
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CHM130 Lab 6 Exploring Density Name A. Data Tables Place your completed Data Tables here Part IIIa (3 points) Volume of water in graduated cylinder (mL)10 mlMass of rubber stopper (g)11.15Volume of water and rubber stopper (mL)16.5 Part IIIb (6 points) Volume of water in graduated cylinder (mL)20Mass of iron nail (g)3.66Volume of water and iron nail (mL)20.5 Part IV (20 points) Type of Aluminum FoilMass (g)Length (cm)Width (cm)Volume (cm3)Thickness (cm)Regular.63g15 cm 10.02 cm.21 cm3.0014
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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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