Objective:- The aim of this experiment was to find the molar mass of unknown volatile liquid under known temperature and pressure. Introduction Molar mass or gram molar mass is the mass of the substance under consideration without distinguishing whether a substance is an element ‚ a molecule or an ionic compound. These elements‚ molecules or ionic compound could be solid gas or liquid. The molar mass of gas or vapor could be measured if the gases obey the law of Ideal Gas . The mass of
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Density Matters: The Effects of Urban Growth Boundaries on Florida Urban Densities Prepared by Submitted to ___ Executive Summary Urban growth boundaries (UGB) are a growth management tool adopted from early English land use traditions to categorize land use. UGB’s are boundaries that clearly delineate the limit of the urban density growth permitted and supported by the issuing municipality. Florida instituted the Growth Management Act in 1985‚ mandating local comprehensive
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DENSITY OF LIQUIDS AND SOLIDS by Lab instructor: Due date: Results and discussion: The purpose of the experiment was to determine the densities of the unknown liquid and solid as precisely and accurately as possible in order to identify them. It was carried out first on distilled water in order to rule out systematic errors. A 10 mL beaker was placed on a top pan balance and “tared”. The beaker was then removed and 10 mL of distilled water was pipetted into it before it was placed
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Measuring the Density of Ball Bearings/ Density Aaysha Dawood Chem 1211L-198 September 7‚ 2012 Procedure: The procedure for this lab was taken from the lab manual below: Block/McKelvy (2012). Laboratory Experiments for Chem 1211L & 1212L Cengage Learning (7th ed.)‚ p. 5-19 (Measuring the Density of Ball Bearings/Density). No changes occurred that were different from the procedure listed above. Data: Measuring the Density if Ball Bearings | Ball 1 | Ball 2 | Ball 3 | Ball 4 |
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Lab No.1: density‚ accuracy and precision Aim: to determine the relative precision and accuracy of different glassware items by calculating the density of a known substance. Introduction: the density of a substance is its mass per unit volume. (where P-density‚ m- mass and v- volume). Different materials usually have different densities and densities vary according to the pressure‚ temperature and purity of a substance. When measuring‚ there is always a small uncertainty or error and therefore
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I. Introduction A. Purpose The purpose of this lab was to practice measuring the mass and volume of different samples and to calculate the density and specific gravity of those samples using the measurements. B. Equipment 1. Electronic balance- The electronic balance is a device used to measure the exact mass of an object 2. Graduated cylinder- The graduated cylinder is a tool used to measure the volume of a liquid 3. Pipets- Pipets are small tubes that suck up and contain liquids C. Technique
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<center><b>Mass‚ Volume‚ and Density Lab</b></center> <br>The purpose of this lab was is to find the mass and volume of an object. Then to find the density of the object using the measurements of the mass and volume. <br> <br><b>Equipment:</b> <br>scale <br>graduated cylinder <br> <br><b>Hazards:</b> <br>dropping object into graduated cylinder too fast may cause it to break <br> <br><b>Procedure:</b> <br>First get out the equipment that will be needed. Make sure to have about 5 objects that can fit
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Hardness and Density of a Solid Name of Solid Hardness Density Talc 1 2.75 Fluorite 4 3.13 Calcite 3 2.71 Quartz 7 2.62 Gypsum 2 2.3 Apatite 5 3.19 My graph has no correlation. My hypothesis for this Experiment is that a mineral is able to scratch a mineral with a lower number and can‚ therefore be scratched by a mineral with a higher number. A mineral’s density is the amount of matter in a given space (mass/volume). Each mineral has a characteristic density (density does not
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hi 1. Which of these is not correct as a basic property of electric charges? (a) Total charges in an insulated system is invariable (b) A charged body is electrically unstable (c) * A charged body has equal number of positive and negative charges (d) Positively charged body is deficient of electrons x+q1+q2 = 2 q1 2.Calculate the distance x between charges q1 and q2 shown‚ given the repulsive force between them as 1.2 x 10-4 N‚ take the permittivity of vacuum
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Eutrophication Introduction Europhication (the over enrichment of aquatic ecosystems with nutrients leading to algal blooms and anoxic events) is a persistent condition of surface waters and a widespread environmental problem (Carpenter‚ 2005). The main cause is excessive loading into the system of phosphorus and nitrogen‚ resulting in high algal biomass‚ dominance by cyanobacteria‚ and loss of macrophytes (Dixit‚ 2005). When the nutrient concentrations rise to extremely high levels‚ eutrophication
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