mass‚ volume‚ density and time using different scientific tools and methods. Precision‚ Accuracy‚ etc. would be utilized from the past learned skills and applied to future labs while working on calculations. EXPERIMENT: Throughout physics(labs)‚ measurements are determined with help of experimental data manipulation. In the lab it is detrimental to know how to measure length‚ mass‚ and time in accurate and precise manner. MATERIALS: • 3 Box-like objects (block‚ thick book‚ shoebox‚ etc
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After being provided with a set of experimental data‚ a graph is then created. The graph contains useful information such as the slope‚ which could give the density value. The calculation of significant figures was one of the key objectives in this lab as well. Significant figures are essential to interpreting data because they allow for increased precision and accuracy. Also‚ using Excel‚ the density calculations could be performed quickly and accurately. In this experiment‚ the density of water
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PREPARING CYCLOHEXENE FROM CYCLOHEXANOL INTRODUCTION Alkenes can be prepared in the lab by dehydrating the corresponding alcohol. Concentrated sulphuric and phosphoric acids both act as dehydrating agents. Phosphoric acid is preferred because it gives a higher yield of the alkene. Concentrated H2SO4 reacts with alkenes. SAFETY Eye protection must be worn. Concentrated phosphoric acid is corrosive. Mop up spillages immediately with plenty of water. Cyclohexene and cyclohexanol are
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Objective The purpose of this lab is to determine the particle size distribution of the fine and coarse aggregates by sieving. Equipment and Material Balance‚ sensitive to within 0.1% of the weight of the sample to be tested Standard sieves for grading of fine aggregates- 4.75 mm‚ 2.36 mm‚ 1.18 mm‚ 300m‚ 150m (# 4‚ 8‚ 16‚ 50 and 100) Standard sieves for grading coarse aggregates- 1 ½ in.‚ 1 in.‚ ¾ in.‚ ½ ‚ 3/8 in.‚ 4 in‚ plus a 4.75 mm(#4 sieve) Fine (0.5 Kg) and coarse (2 to 20 Kg depending
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Toxicology Lab 1. In this investigation‚ a wide range of concentrations of Sodium Chloride (NaCl) solution were created and the effects that they had on radish seeds were tested. This ultimately created a doseresponse experiment in which it was detectable whether or not radish seeds were a reliable bioassay for the toxicity of NaCl. The goal of this experiment was to determine a correlation between toxicity and seed germination/radicle
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Lab: investigating hooked law with springs Purpose: to find spring constants of different springs using the slope of a graph of change in heights vs. the weight force. Also‚ to be able to understand how spring constants change when you add springs in a series or paralle Pre lab predictions: We predicted that the graph of gravitational force (mg) as a function of stretch (delta x) would look like Data: Spring #1: y = 8.2941x + 0.0685 This table represents the different distances that
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1. DATA: Table 1: Density based on dimensional analysis Trial 1 Trial 2 Trial 3 Units Mass of sample 70.5466 70.5467 70.5465 g Dimensions of sample Length 4.98 4.98 4.99 cm Width 1.21 1.22 1.21 cm Height 1.21 1.22 1.22 cm Volum of sample 7.29 7.41 7.37 cm^3 Density of sample (based on dimensional analysis) 9.68 9.52 9.57 g/cm^3 Table 2: Density based on the displacement of water Trial 1 Trial 2 Trial 3 Units Mass of sample 70.5467 70.5465 70.5466 g Final
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siliceous material. 2. The particles are nearly spherical shaped. 3. The size of its particles is smaller than 0.85mm (Pass through 15 B.S. sieve) and bigger than 0.60mm (Retain at 25 B.S. sieve). A H M 531 Compressive and tensile strength of cement mortar By: Ahmed Essam Mansour The Civil Engineering Center 1 Visit www.AHM531.com for more lab reports and lecture notes! A H M 531 The Civil Engineering Center In the cement-sand mortar‚ the proportion between Cement and Sand is 1:3 and
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Balance Sheet The biggest change in Abbott’s balance sheet can be seen in the composition of its asset accounts. In 2006‚ % of the firm’s assets were current‚ while 69% were of the long-term variety. In 2010‚ however‚ the portion of current assets increased by 7%. This increase in current assets is most visible in cash and short-term investments (4% in 2006 to 9% in 2010) and corresponds with a higher level of uncertainty in today’s economy. The fact that Abbott Laboratories has chosen to increase
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of the specialized underlying structures of these life-forms. In order for us to appreciate these special adaptation‚ we first need to know how a typical plant or an animal cell organelle behaves in different water and solute concentrations. In this lab‚ we will determine the effects of hypertonic‚ isotonic and hypotonic solutions on plant and animal cells. In general when an animals cell’s placed in hypertonic solution it shrivels; a plant cell on the other hand undergoes plasmolysis. When an animal
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