An Introduction to Lab Procedure Purpose: To obtain a higher understanding of lab techniques. Procedure Part A 1- Draw about 400 mL of deionized water into a clean beaker‚ and let it stand for 15 minutes to equilibrate to room temperature. Note‚ there is only one deionized water tap in the lab room; make sure you use the correct tap. 2- Confirm that your 10.00 mL volumetric pipet is clean by filling to above the mark with deionized water and then letting it drain. Your pipet is a
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Design Lab: How do Smarties and M&Ms compare when examined in 5 areas: mass‚ shell solubility‚ volume‚ density‚ and nutrition facts? ‚ Erin MacNeil SL Biology Kathy DeGrasse Halifax Grammar School March 3rd‚ 2013 Section 1.1 Planning (a) * Introduction * Research Question * Hypothesis * Explanation of Hypothesis * Variables Introduction: In this lab‚ M&Ms and Smarties will be compared in five different ways: mass‚ shell solubility‚ volume‚ density‚ and
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Part I: Density of Unknown Liquid Trial 1 Trial 2 Trial 3 Mass of Empty 10 mL graduated cylinder (grams) 25.55 25.56 25.55 Volume of liquid (milliliters) 8.8 8.65 8.5 Mass of graduated cylinder and liquid (grams) 30.65 30.62 30.565 Part II: Density of Irregular-Shaped Solid Mass of solid (grams) 39.537 38.515 40.975 Volume of water (milliliters) 50.01 49.9 52.4 Volume of water and solid (milliliters) 54.9 54 57 Part III: Density of Regular-Shaped
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Experiment 5: Relative Density Patrick Erlo Reyes‚ Joseph Winfred Sajul‚ La Reyna Roshele Salenga‚ Luisito Jeremiah Samonte‚ Christine Bernadette Sanchez Department of Biology College of Science‚ University of Santo Tomas España‚ Manila‚ Philippines Abstract This experiment is concerned with the densities of objects. The first activity is determining the density of a cylinder through displacement method and by weighing. The second activity is finding the density of a bone and determining it whether
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CHM130 Lab 6 Exploring Density Name: Paige Miller A. Data Tables Place your completed Data Tables here: Part IIIa (3 points) Volume of water in graduated cylinder (mL) 10.00 mL Mass of rubber stopper (g) 11.37 g Volume of water and rubber stopper (mL) 16.50 mL Part IIIb (6 points) Volume of water in graduated cylinder (mL) 20.00 mL Mass of iron nail (g) 3.45 g Volume of water and iron nail (mL) 20.50 mL Part IV (20 points) Type of Aluminum Foil Mass (g) Length (cm) Width (cm)
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The physical environment has determined to some extent‚ the distribution and density of Australia’s population. Discuss. People do not live evenly spread through the world. Australia is one of the counties that considered has a low population density. This is due to approximately 23 million population were distributed unevenly. Besides the physical environment‚ there are also a variety of other factors that have actually worked together to distribute in the Australia’s population that cannot be
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The Effects of Population Density and Noise Paper Psy/460 The Effects of Population Density and Noise Paper Introduction There are quite a few people who believe that territoriality‚ privacy‚ and personal space mean the same thing‚ but that is not the case. As noted in this paper‚ they are completely different things. The author of this paper will describe the concepts of territoriality‚ privacy‚ and personal space; examine how these concepts have become increasingly important as populations
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Name: LaGarrian Harris|Date: 2/10/2013| Exp 2: Laboratory Techniques & Measurements|Lab Section: 1411| Data Tables: Length Measurements Object Measured|Length in cm|Length in mm|Length in m| Key|5.2|52|0.05| CD|12.0|120|0.12| Spoon|15.0|150|0.15| Warm Temperature Measurements Hot tap water temperature __44.0 ˚?C 111.2˚?F 317.15_K Boiling water temperature at 5 min __100_˚?C _212 ˚?F 373.15_K Cold Temperature Measurements Cold tap water temperature _19.0_˚?C _66
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and accurate measurements. The objectives in the experiment are to learn how to use laboratory equipment to determine volume‚ mass and temperature. It is also important to learn how to combine units to determine concentration and density in order to measure the density and concentration in different dilutions. Procedure Exercise 1 Length Measurements 1) Gather DVD or CD‚ key‚ spoon and fork. 2) Measure the length of each item in centimeters with one degree of uncertainty‚ record. 3) Measure
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Instructions: 1. Why does a hot air balloon float even though it is so heavy? Hot air balloons float because the buoyancy force of the hot air is more that the weight. Buoyancy occurs because the hot air has a lower density than the cooler outside air. This lower density air weighs less than the air it replaces and that difference is the buoyancy. 2. What makes balloons float when they are full of air but not float when they are deflated? Balloons float when they are full of hot air
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