and analytical balances. b. How did you do it? Briefly describe the procedures in 1 sentence. We calibrate a volumetric pipet and flask. We also calibrated a beaker and 50 mL buret. We also calculate the difference between the expected density and density obtained by our team. c. What happened? Briefly give the result (or results) of the experiment in 1 sentence. We noticed the calibration marks on the beakers were taken only to be an approximate guide to volume because the marks were placed
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Experiment 7: Relative Density Laboratory Report Marella Dela Cruz‚ Janrho Dellosa‚ Arran Enriquez‚ Alyssa Estrella‚ Zacharie Fuentes Department of Math and Physics College of Science‚ University of Santo Tomas España‚ Manila Philippines Abstract The experiment was conducted to show the different methods on how to determine an object’s composition through its density and to determine an object’s density by displacement method and the Archimedes Principle. Results show that. The materials
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Density Lab January 24‚ 2014 Benjamin I. Purpose- The purpose of this lab is to identify the unknown substances by calculating the densities of the given substances then comparing those densities to the actual densities on the table given. II. Materials- Graduated cylinders Triple beam balance Unknown substances from bag given by teacher Table of known densities Calculator Water III. Procedure- The first thing one must do to identify which substance is which is to calculate the
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acquaint the students with basic laboratory procedures‚ methods‚ and techniques; to introduce the use of basic laboratory measuring devices; to demonstrate different methods of manipulation of numerical quantities. DENSITY AND SPECIFIC GRAVITY Materials and Methods Part 1: Density of an Unknown Solid 1. We first were asked from our laboratory instructor to attain an unknown solid and were asked to note down the number of the solid. 2. Determine the mass of the unknown solid to the
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THRUST • The force acting on a body perpendicular to its surface is called thrust. • Thrust is the total force acting on the surface of the body. • Thrust per unit area is pressure Pressure = Thrust Area S.I unit of pressure is N/m2 or Pascal EVERYDAY OBSERVATIONS RELATED TO PRESSURE: • School bags have wide straps so that the weight of the bag falls over a large area of the shoulder producing less pressure on the shoulder. Due to this less pressure
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measurements using density as an example. The density of a sample will be found experimentally and compared to a known value. The relationship of averages and different analysis techniques to percent error will also be explored. Density is a characteristic of a substance which can qualitatively be described as the amount of matter (mass) squeezed into a given space (volume). The density of substance remains the same no matter the size of the sample at a given temperature. Quantitatively‚ density can be expressed
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The Density of a material may be determined by determining the mass and volume of a sample material and calculating the mass/volume ratio. An independent variable is the variable that is being manipulated or changed during the experiment. The dependent variable is the variable that is being measured. The independent variable for this experiment is the copper because you are only changing the amount of copper you use. The dependent variable is the density because we are measuring the density. In
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are the density‚ relative error and the standard deviation. Density is refers to the mass (m) per unit volume (V) of a material and is often represented by the symbols d or ρ‚ where d = m/V. The density of an object changes with pressure and temperature. Second‚ relative error is a calculated by finding the difference between the true and measured values and dividing this difference by the true answer. And‚ the standard deviation is the measure of the spread of dispersion of scores (density) from the
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Apparatus INTRODUCTION Density is defined as mass per unit volume. The commonly used unit to indicate the density of water is (g/cm3). Water never has an absolute density because its density varies with temperature. Water has its maximum density of 1 g/cm3 at 4oC. When the temperature changes from either greater or less than 4oC‚ the density will become less than 1g/cm3 only when it is pure water. Other factors that can affect water’s density whether it is tap water‚ fresh water or
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3.6 cm high‚ 4.21 cm long‚ and 1.17 cm wide. If the mass is 21.3 g‚ what is this substance’s density (in grams per milliliter)? * Volume= 3.6*4.21*1.17= 17.7g * Density= mass/volume= 21.3/17.7= 1.2g/mL * Density= 1.2g/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? * Volume= mass/density= 26.15/19.30= 1.35mL * Volume= 1.35mL E. What would happen if you dropped the object into
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