Measurement: Length‚ Mass‚ Volume‚ Density‚ and Time Peter Jeschofnig‚ Ph.D. Version 42-0267-00-01 Lab RepoRt assistant This document is not meant to be a substitute for a formal laboratory report. The Lab Report Assistant is simply a summary of the experiment’s questions‚ diagrams if needed‚ and data tables that should be addressed in a formal lab report. The intent is to facilitate students’ writing of lab
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| 15 mL | Mass of liquid water (in grams) | 59 g | 54 g | 104 g | 31 g | 15 g | Calculations: The mass of a particular amount of a substance is equal to the product of the volume of that amount and the density of the substance. Mass = Volume x Density The density of water is 1.0 g/cm3‚ so it is assumed that the volume of water in mL will be equal to the mass of the water in g. 1 mL H2O = 1 g H2O For example‚ in trial 1‚ Volume of liquid water = 59 mL * Mass of liquid water
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Discussion The purpose of the Density Lab was to determine the identity of four unknown solids and two unknown liquids by calculating their densities and comparing them to a density chart‚ taking into account error analysis and finally classifying the substances. In order to calculate this density‚ we first found the mass of the container that was to be holding the substances. We then found the volume of the substance‚ and lastly determined the mass of the container and substance. We subtracted
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In physics‚ the charge of a volume is commonly described by a quantity called the charge density or the charge distribution. When the electric field that arises from the charge distribution exhibits a volumetric symmetry‚ a handy relationship known as Gauss’s Law may be used to calculate the charge distribution of the volume. The charge volume of a ball or rod mill is expressed as the percentage of the volume within the liners filled with balls or rods. When the mill is stationary‚ the charge
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to zeros. 3. Graph the volume and mass on an excel sheet to help determine the density of each plastic. The y-axis is the dependent and the x-axis is the independent‚ which in this case the y-axis is the mass and the x-axis is the volume. In the graph‚ add a linear trendline. Determine the slope to find the average density. 4. Once you have found the density for each known plastic‚ you will find the density of the two unknown plastics. First‚ use 50mL of water and place each plastic in the
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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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Cortical Bone Trajectory Screws for Middle Upper Thoracic: a Anatomico-Radiological Study Introduction Pedicle screw fixation system has been widely used in spinal surgery due to its biomechanical advantage in three-dimensional fixation and short-segment fixation. However‚ Complications such as screw loosening‚ pullout and broken‚ often lead to loss of surgical construct stability‚ particularly in patients with poor bone quality [1-4]. The cortical bone trajectory (CBT)[5] technique is a theoretical
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water‚ at this point the water is dense enough for the egg to float. To find the density of salt water first measured the mass of salt water after adding salt into 800ml of water. The following results are the density of salt water every time increasing 1 table spoon of salt into 800ml fresh water. One table spoon of salt is also equal to 10g. Density = Mass Volume Amount of salt | Density of salt water | 0 spoon1 spoon2 spoon3 spoon4 spoon5 spoon6 spoon | 1.071.091.111
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LESSON 3: MOLAR VOLUME QUESTIONS 1. Calculate the density of the least dense gas‚ hydrogen‚ at 25⁰C and 101.3kPa. [0.083g/L] 2. Calculate the density of the densest gas‚ uranium (VI) fluoride (UF6) at 70⁰C and 25.0kPa. [3.09 g/L] 3. An unknown monoatomic gas X has a density of 5.37g/L at 25⁰C and 101.3kPa. Calculate the molar mass of the gas and determine its identity. [ 131.028g/mol; Xe] 4. Calculate the density of ammonia gas in grams per litre at 18⁰C and 100.4kPa. [0.706g/L] SCH3U0 Gases
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measurements. With this lab we had to understand how to analyze the data using measurement bounds. Theory: In this experiment we were to find the density of the wood we are measuring by using the method of upper bound and lower bound. Density is a physical property of matter. Every element and compound has its very own unique density associated with it. Density can be defined in a qualitative manner as the measure of the relative heaviness of objects with a constant volume or also as the amount per unit
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