DETERMINATION OF DENSITIES Claudia S. Camacho C/Y/S Use Arial 12) DE LA SALLE HEALTH SCIENCES INSTITUTE General Education Department Dasmariñas City. Cavite ( Use Arial 10) ABSTRTACT The objectives of this experiment were to determine the densities of some solids and liquids and to apply the rules of significant figures in computing laboratory data. For liquids‚ a dry‚ empty 100-ml graduated was weighed
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the results of the experiment themselves‚ whether volume‚ mass‚ or density‚ proved insufficient in my attempts to distinguish the identities of the metals. Thus‚ during the experiment‚ I also observed the color of the metals‚ and used these observations in my assessment of the metals. The five trials for the golden metal produced an average density for all trials of 8.34 grams per cubic centimeter. [Processed Data Table: Density of the Golden Metal]. The golden metal itself‚ while referred to as
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Density Name : Prashanth Ashok Date:22/2/2012 Partner’s Name : Marcus Lee Lab Section : 6 Results and Discussion Part A | |Measured Weight (g) |Weight of water (g) |Density of water | |Graduated Cylinder |62.33 |-- |-- | |Graduated Cylinder + 10ml water |72.04 |72.04 - 62.33 = 9
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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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substance’s density (in grams per milliliter)? 1.20 g/ml D. A sample of gold (Au) has a mass of 26.15 g. Given that the theoretical density is 19.30 g/mL‚ what is the volume of the gold sample? 1.355 ml^3 E. What would happen if you dropped the object into the beaker while using the Archimedes’ Principle method instead of submerging the object? If the object was dropped into the beaker‚ then the measurements would not be correct. F. How did the magnet’s density measurement
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28 1.38 Take moments about the pivot‚ the restoring torque is T = (mg)(Lsinθ) For small angles‚ sinθ is approximately equal to θ in radians and KT = T/θ = mgL 1.39 The buoyant force is equal to the weight of the water displaced = vol x density. F = (πD2/4)(x)(ρg) ; k=F/x=(πD2/4)ρg Use MATLAB to check the spring constant obtained from the slope of the f vs. x plot. Problem 1.49 1.49 x=[0‚.3‚.46‚.7‚.75‚1.05‚1.14‚1.36‚1.55]; f=[0:200:1600] p=polyfit(x‚f‚1) xfit=[0:.1:1.5] ffit=polyval(p
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DENSITY DETERMINATION An old riddle asks “Which is heavier‚ a pound of feathers or a pound of lead?” The answer is obvious‚ of course‚ since a pound of feathers and a pound of lead both weigh the same‚ one pound. However‚ there is clearly something different about a small piece of lead and a large bag of feathers‚ even though they weigh the same. What is this difference? The relationship between the lead and feathers is expressed by the physical property called density. Density is defined
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obtained in 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
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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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