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January 30, 2012 1. Title: Laboratory Techniques and Measurements 2. Purpose: The purpose of this lab is to learn laboratory techniques and to how to measure precisely. During this lab I will learn how to measure length, temperatures, volume, density, and mass using laboratory equipment. I will be using laboratory equipment to prepare dilutions and calculate them while using an algebraic formula. 3. Procedure: In order to perform this lab I needed the following materials: a metric

using the volume and mass of an object can be used to the calculate density, and how the density can help you to identify what substance the object is made of. We began the lab by obtaining object C and recorded the physical properties of the substance. Next, the object was placed onto a scale to determine the mass in grams (56.56g). We used a ruler to measure the radius of the base (.6cm) and the height (5cm) of the cylinder-shaped substance. We plugged these measurements into the volume formula for

Date of Experiment: February 5, 2013 Report Submitted: February 11, 2013 Title: Laboratory Techniques and Measurements Purpose: To gain knowledge about the International System of Units and use it to determine volume, mass, length, and temperature. To learn to use these forms of measurement to determine density and concentration, as well as learning basic lab equipment to create dilutions. Procedure: Part 1: After reading the various information given, I gathered

Jessica Cimaroli Lab 1 Purpose To learn about the International System   of   Units   (SI)   system   and   how   it   relates   to   measurements   in mass,   length,   temperature,   volume, and time. To learn about the common  techniques  and  laboratory  equipment  used   to   make   SI measurents. Procedure Length Measurements 1. Gather the metric  ruler,  CD  or  DVD,  key

calculate the density of a solid or liquid sample, what measurements are needed? Mass and volume 3. The volume of a fixed mass of a liquid sample increases as the temperature rises from 20 to 408C. Does the density increase, decrease, or stay the same? Explain your answer. The density decreases. Density of the liquid sample is the mass divide by the volume. If the mass stays constant and the volume increases then the density of the liquid sample will decrease. 4. A solid block of exactly

the International System of Units and common laboratory equipment and techniques. To learn how to determine volume, mass, length, and temperature of a wide variety of items. To learn how to calculate density and concentration of dilutions. Procedure: I used a ruler, thermometer, and scale to take measurements. I used a graduated cylinder, short step pipet, scale, and ruler to determine volume and density. I used a volumetric flask, graduated pipet, pipet bulb, scale, and glass beaker to determine

Results and Conclusions: Density measures the mass of substance per unit of volume. Density of solids is measured in grams/cM3. Density of liquids is measured in grams/mL. Density of gases is measured in grams/Liter. Specific Gravity is when the density of many substances are compared are compared to the density of water which is 1 gram/cM3. If a substance has a density less than 1 gram/cM3, it will float but if the density is greater than 1 gram/cM3, it will sink

the we found the weight of the 10 ml of water by subtracting the weight of the water and the cylinder by the weight of only the cylinder. We found the volume of the water by seeing how much the water rises but it did not rise from 10 ml mark because no object or weight was in the water. The density of the water is mass divided by volume. Our volume was 1 ml and our, mass was 9.8g, and after dividing those two numbers we got a density of .98g/ml. But the density of pure water is 1.0, and the density