Density Lab

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

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 concentrations and densities of various dilutions.

The main purpose of the Density Lab is to be able to measure density of different objects whether it is a liquid or a solid. Density is the measure of how much mass in a specific matter. To find the density of a liquid you must find the volume and mass of the liquid. Density and specific gravity go hand in hand by that specific gravity is the density of substance/ density of stand, in this case and most cases the standard is water. You have to use the correct number threw out the calculations to get a scientifically accurate answer.

First, all the materials were collected. After collecting all the materials was prepared, we started measuring the mass of the beaker and plastic

Despite measuring the same amount of solution for all three volumetric glassware, it was revealed in this experiment that different glassware will give fluctuating recordings due to the different calibrations found within each glassware. It was deemed that the Buret provides the most precise density value among the three glassware utilized in the experiment. The Buret accumulated 0.34 % difference indicating high precision. The least precise data came from the graduated cylinder. The graduated cylinder had a percent difference of 1.37% which was the highest percent difference recorded for the experiment. There are a number

Every substance has its own unique density due to all of the atoms mass, size, and arrangement being different for each atom. Density is the relationship between two characteristics of matter which are mass and the occupied space. Density is a characteristic property, meaning the density of a substance will stay the same. In an investigation the objects densities would be calculated to determine whether the objects are made of the same material. The objects are all different colors, sizes, textures and shapes. In order to find density, the mass and volume would need to be calculated.

6. Continue adding water in increments of 5 mL, and determine the mass of 15 mL, 20 mL, and 25 mL water. Record all of the data in Table 2. 7. Calculate the corresponding mass for each volume of water and record this information in Table 3. 8.

The main objectives of this experiment were finding the mass, density, volume, and thickness of different objects using the right scientific instruments and equations, learning how to compare the accepted measurements of an object with the density that the group procured using a formula, and using significant figures

Density is the amount of mass per unit volume. Common units for density include grams per milliliter for liquids, grams per centimeter for solids, and grams per liter for gases. The purpose of this lab is to explore the ways of calculating density through

For this lab a series of different liquids can be used , have at least 3 different liquids, and have a graduated cylinder. In this lab you can pour each liquid into the graduated cylinder one at a time and then once all of them are poured absorb to see which ones are at the top of the cylinder and which are at the bottom. Using observation and knowledge about density those participating can figure out which what type of liquid each is. Another extension to the lab could be to have all of the objects be measured using water displacement and the method to use dry volume. Each object would be measured for it’s wet and dry volume then those measurements would be used to find the density of the objects. Finally the densities found with wet volume and dry volume could be compared to the actual density of the material to show which method came up with a more accurate outcome. One last extension for this lab could be use different objects but instead of trying to find the density try to find the volume or mass. The density of each material would be given and then from there those participating would use the density to volume/ mass formula to determine what the mass or volume then use the gathered information to make the density with the material. This experiment would help to further practice and understand the process of calculating

In this lab experiment, we determined the densities of two solid substances that have regular and irregular shapes by water displacement and dimension methods. For the regular solid substance, the value of density was 0.18g/mL, while for the irregular solid substance, the density was 0.22g/mL. Primarily, we wanted to understand the significance and the meaning of the density of a substance. We discovered that density does not vary on the size and the amount of the substance. Instead, it depends on the composition of the substance. Therefore, it is an intensive property. In order to find density of substances, we calculate the mass of these substances, and we divided them by their amount of values. The basic units for the measurement of density

The density identification and comparison lab was used to determine the identity of an unknown metal, liquid, and wood using density alone. The main purpose of the lab was to use density to determine the identity of unknown materials allowing for a better understanding of density, and to what extent you can use it to identify materials with. Though it was also used as a way to practice finding mass, volume and density, and pertaining to lab experience it was used as a way to give students a chance to practice writing in depth lab procedures and data tables.

MEASUREMENTS IN SCIENCE Introduction: In this lab, a sample of metal and a sample of plastic were identified using their respective densities. Different materials have a unique density which is defined to be the amount of mass inside a specific volume of the material. The density does not change with the size or shape of the object, so it can be determined using any size sample of the material by dividing its mass by its volume.

Density is a physical characteristic of a substance that both living and nonliving things possess. However, the amount of a substance does not affect density since density is an intensive property. Determining the density of a substance is significant because it helps to identify it. Although two substances may have the same mass, the densities of each can differ. The more space an object occupies, the less dense it is. Furthermore, the laboratory experiment reveals how important density is especially in everyday life. For instance, in order to know if something will float or not, one would have to know the density. If the object has a density that is lower than that of the water then it has the ability to float.

If this experiment were to have been repeated, micropipettes would be used instead of the standard pipettes to increase the accuracy when withdrawing fluids. This would substantially decrease the degree of errors due to incorrect measurements. Additionally, the centrifuges would be replaced with new machines since the previous centrifuges caused a few test tubes to break, even though the solutions had been evenly balanced by weight. More caution may also be needed when balancing the centrifuges to prevent future