The Densities Of Water Were Found By Diving Mass

Purpose: To learn about the international system of units (SI), to become familiar with common lab equipment and techniques, to gain proficiency in determining volume, mass, length, and temperature of a variety of items using common laboratory measurement devices, to learn to combine units to determine density and concentration, and to use laboratory equipment to create serial dilutions and determine the density and concentration of each dilution.

The dependent variable in the experiment was the temperature and energy absorbed by the water.

Density was an important part of this lab. Density can be defined as the ratio of the mass of an object to the volume. To find the density of an object, simply divide mass and volume. The equation looks like this: D=M/V. Density is an intensive property that depends only on the composition of a substance, not the size of the sample.

5. Calculate the density of an object that has a mass of 43 g and a volume of 56.0 mL.

My calculated volume values were found by using the Charles’ Law formula: V1/T1=V2/T2. My Trial A values (20 mL and 293.15 K) were the V1 and T1 values. The temperatures measured in Trials B, C, D, and E were the T2 values. The quantitative relationship between the volume and the absolute temperature of a gas is summarized in Charles’ Law. This law states that at constant pressure, the volume of a particular sample of gas is directly proportional to the absolute temperature. In other words, there is a direct relationship between temperature and the volume of gas. In an actual laboratory, it must be ensured that the hot water is below 50ºC. If it is not, the sealed syringe will soften and it could explode.

Introduction: Accuracy and precision were the major aspects of the lab. Accuracy is how close the average of the measured values are to the actual value. Precision is the closeness of repeated measurements. In the lab, the aim was to get as close as possible with both accuracy and precision when determining the mass and volume of the spheres. The mass was determined by weighing the spheres on the Analytical Scale and Triple Beam Balance Scale. The volume is determined by measuring with a ruler and by water displacement. The standard

2. In order to calculate the density of a solid or liquid sample, what measurements are needed?

Abstract: This experiment introduced the student to lab techniques and measurements. It started with measuring length. An example of this would be the length of a nickel, which is 2cm. The next part of the experiment was measuring temperature. I found that water boils around 95ºC at 6600ft. Ice also has a significant effect on the temperature of water from the tap. Ice dropped the temperature about 15ºC. Volumetric measurements were the basis of the 3rd part of the experiment. It was displayed during this experiment that a pipet holds about 4mL and that there are approximately 27 drops/mL from a short stem pipet. Part 4 introduced the student to measuring

When you are doing the displacement method there can be an error on how much volume of water you accurately pour in.

Thepercent error was calculated making use of the formula: “Differencebetween experimental and reference value divided by reference valuetimes 100=% error.Results:Lab Room Temperature Degrees ℃.20.9℃.Mass of 1mL of water=water density (g/mL). 0.9928g/mLReference Value (from data table).0.9982Percent error.0.54%Part D: Density of a solid. To determine the density of a solid, lead shot, graduated cylinder and a labwash bottle filled with distilled water were required. An approximate of 40g of lead shot was tarred into a weighing boat and thentransported on the scale and its mass was recorded accurately to 3 decimalplaces. Using a 10 mL graduated cylinder, 5mL of water was measured. The lead shot was poured into the graduated cylinder filled with water andthe volume of the water plus lead was recorded. The volume of the lead shot was calculated by subtracting the original valueof 5mL of water from the volume of water plus shot lead, and then it

In this lab we had to calculate/measure the volume and mass of different types of wood and metal to then calculate the density. Density is the degree of compactness of a substance and it is found by dividing mass by volume. Density

The apparatus is capable of producing results within 10% error. As the depth of the water increased, the difference between the measured and theoretical values increased. The standard error and depth of water have a direct relationship. The percent error has no trend. For derivations of the 100° hydrostatic forces and sample calculations see Appendix A. For raw data see Appendix B.

Purpose- The purpose of the experiment was to investigate the effect of mass and volume on the density of water.

The next question is specific gravity has no units, so how do you think working with specific gravity would be different from working with density. The answer is by knowing units, you know what to plug into the formula. The last question is how could you find the density of a solid that floats in water? You find this out by taking

After that, it is crucial to convert the mass to volume. The water density at a temperature will aid this process. The compliance of the Volume Occupied by 1.000g of Water Weigh in Air table is deemed necessary throughout the comparison.