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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| 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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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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overlaps with data already retrieved on behalf of a previous request. Effective data clustering allows for better‚ if not optimal‚ cache affinity. Data density is defined as the proportion of objects within a given storage block that are accessed by a client during some scope of activation. Clustering is a technique to achieve high data density. The working set is defined as the set of database pages a client needs at a given time. ObjectStore is a page-based architecture which performs best when
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must be conducted in the media‚ with media air‚ water‚ and re-solution or the re-suspension‚ one of the most commonly used are water‚ air‚ called wind beneficiation‚ with density greater than water weight liquid or re-suspension is known as a heavy media beneficiation. The heavy media beneficiation is a strictly mineral density sorting method. 2) classification. Of granular material in the settlement of the air or water‚ the particles of different size and shape suffered different media resistance
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propagation laws. Find the electric field strength at the mobile location. Also find the power flux density Φ in w/m2 for users along the horizon. b. Repeat for the two-ray model‚ assuming a tower height of 40 meters‚ a mobile height of 2 meters‚ and a plane earth approximation. Assume the transmitted signal is verticallypolarized‚ and that the earth reflection coefficient magnitude is 1. c. Plot both power flux densities versus d on log-log scales‚ over a range from 100 meters to 10 kilometers. You should see
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Density is a measure of how much matter takes up a certain amount of space or volume. The more matter you can pack into a certain space‚ the denser it is. Although we often confused the two‚ density and weight are actually two different measurements. Weight is defined as the mass of an object times the force of gravity. In our world where we have gravity forcing things downward‚ a denser object will be heavier too. One way to check the concentration of a liquid is by measuring density and
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There were several drops of the water cling to the beaker. This may increase the actual mass of water in each trial. In the density part‚ the mass and density of zinc electrode was measured and calculated to determine the accuracy of the measurement. The result shows that the densities of zinc electrode in two trials are 6.2±1.6 g/cm3 and 9.4±3.8 g/cm3 (The average density is 7.8±3.8 g/cm3)‚ which is not quite accurate‚ compared to the standard of solid zinc density1 (7.14 g/cm3)1. The random error
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