Volume One

between Mineral Type and Density (g/ml) Purpose/Introduction: The purpose of this lab was to understand the relationship between minerals and density, the ratio of mass to volume, particularly, how density can be used to identify mineral type. In the lab, two samples of the mineral, feldspar, were measured for mass and volume in order to calculate their density. Many of the mineral tests yielded qualitative data, such as color, streak, luster, and crystal shape, which can be subjective. Other…

flask. Once the mass was determined in grams, the density was easy to determine, by using the density equation. The second portion of this experiment was to calibrate a 10mL pipette. Once the density was determined for this section, the pipette volume could then be determined, regarding the amount. The data that was recorded in my lab notebook, from these five trials could determine the pipets calibration. I believe that the meaning behind this experiment was to carefully…

Athukoralage Gunawardana September 20, 2016 Erin Whitehouse The first part of the experiment consisted of finding the accuracy and precision of three different measuring devices, a 50mL beaker, a 25mL graduated cylinder and a 25mL pipette. The mean volumes and uncertainties were found to be 22.5mL 1.9, 23.72 .25, and 24.89 .43, respectfully. The 25mL pipette was found to be the most accurate out of the three. The density of water was found to be 0.9979 g/cc with a percent error of .08,…

Objective- Our goal for this lab was to calculate the Density of a substance. We needed to make sure we had the materials to find mass and volume and then use a formula to calculate density. Introduction- The main principle of this experiment was to figure out the Density of certain objectives given to us in the lab. We had to know the the formula D-M/V in order to find the density of that object.We also needed to know the density of water(1.0 g/l) in order to predict if something would float…

FedEx has experienced steady growth in holiday volumes since 2007. They forecasted another record holiday in 2015. FedEx expected they would move more than 290 million packages during Black Friday and Christmas Eve, which resulted in a 9 percent increase in overall year-over-year seasonal volume. FedEx also forecasted the busiest day in company history was December 15, 2015 with a forecasted 22.6 million shipments moving around the world. Their peak projections included FedEx earnings…

difficult to hide. 2. Strand-by-Strand Method The stylist attaches small hair extensions one at a time to your natural hair. How many extensions the stylist installs depends on the desired results. A technique such as this requires two to three hours to apply all the extensions. 3. Tape-In Method Tape-in hair extensions come with adhesive tape on one side of them. The stylist simple applies these extensions to one layer of natural hair. Multiple applications will increase the thickness up…

compare the two techniques and decide which one was more accurate. The density of copper is 8.96 g/mL (Copper 1). The average density calculated…

ranges R of the ball as the function of the heights, H, that the ball is dropped from. I will use these data to determined the relationship between the height and the range. Procedure We divided this experiment into three parts. In the part one, the object was to observe the scatter in data. To do this, we set up the equipment: the bounce plate is 20 cm above the table ,the drop plate 20 cm above the bounce plate, a piece of carbon paper over a large piece of newsprint. After all of…

uncertainty being only 0.4%. The pipette could be replaced with a volumetric pipette. This would allow for us to be able to measure the amount of water that is placed within. Therefore a drop would be more accurate as we could control the amount of volume that is lost from the pipette. Maybe it would've been better to use a different balance beam of the same model to determine whether the original balance beam is faulty or if that brand is not very…

One of the most important activities of science is measurement. Measurement is a means of quantifying properties for identification. For example, density is the relationship between the mass and volume of a pure substance. One could determine if a piece of yellow metal is gold by determining its density. Measurement allows scientists to make comparisons. Measurement also provides a means by which scientists can judge the reproducibility of an experimental procedure. However, measurement is not…