Volume Two

opposite process was used to determine the calibration of a piece of glassware using a known density. In the first activity, “Density of Liquids”, the identity of a liquid was determined by calculating its density (g/mL). First the mass (g) of a specific volume (mL) of water and the unknown liquid was found. Their densities (g/mL) were then calculated by dividing the mass (g) by the density), the calculated density was then compared to a list of known densities to determine the liquid’s…

Lab two explored varies ways to find the density of objects. This lab used displacement , measurement, and the density formula to make observation and collect data about the balloon filled with sublimed dry ice, various water samples, and a golf ball. The ultimate goals of this experiment were to collect the most precise measurements of displacement of the balloon in the tap water, the weight of the three water samples versus the original cylinder, and diameter of the golf ball in order to use…

had on their density. These questions were explored in the experiment and some interesting conclusions were made at the end. In the first half of the experiment, the density of copper is calculated using two different methods of measurement. The objective of the experiment was to 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…

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…

about the various methods for hair extensions installation. Each method has its own unique approach, as you will learn in the information that we present here. First, we will briefly explain the attachment methods for installing hair extensions. Two Main Categories of Attaching Hair Extensions 1. Bond or glue methods to attach extensions include glue, keratin, cold and hot fusion, and tape. Extensions can come pre-tipped with the adhesive. Whichever method in this…

out to 55.854g, then after subtracting the mass of the graduated cylinder the total mass of the sand came out to, 15.529g. The volume of the water came out to 6mL after adding 10mL of water and assessing the water displacement. Then using the density formula, (d=m/v, d=15.529/6), the density came out to 2.588g/mL.…

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…

There two methods we used were 1) dropping the ball by free hand , 2) putting a magnet under the ball , and then, dropping the ball by pulling out the magnet. So, we did the part one process in both of these two methods. Then, we use the ruler to measure the standard deviation: we got the mean 12 (2/3 of total points) points , measure the length of their distance and divided this number by two. The final answer will their standard deviation. I found…

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…

Formal Lab Report: Molar Volume of a Gas at STP Abstract: The purpose of this experiment is to find out how to experimentally determine what the volume of a mole of H₂(g) is at STP by using gas laws. The hypothesis for the experiment is that if H₂(g) is produced at RT and STP, Avogadro’s law can be used to experimentally determine the amount of H₂(g) because equal gases at the same pressure and temperature have the same amount of particles. In order to find the molar volume, hydrogen gas…