Eight Layer Density Column Lab

because each of the objects displaced the water by 1 mL, their mass over that mL is their density.

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.

Experiment 2 “Density” was about how to measure the mass and volume and determine the density of water, alcohol, and a solid. For this lab, we begin by calculating the mass of empty graduated cylinder and the mass of 25 mL of tap water. After taking the mass of water and cylinder, we record it on “Density of Water: Data Table”. Since we did not have enough time of complete the whole lab, so we skipped the procedure to measure the density of alcohol. We jumped to the next procedure, which was density of a solid. For that we used a copper and it density 8.95. For this lab, my partner and I did not make any mistakes or errors. But, for better improvement I think we should have more time to complete the whole lab. I felt like we was rushing through

Procedure: Using distilled water, premeasured containers and objects determine displacement of fluids and density of objects. Use ice and heat measure temperatures in Celsius, Fahrenheit and Kelvin.

CHM130 Lab 6 Exploring Density Name A. Data Tables Place your completed Data Tables here Part IIIa (3 points) Volume of water in graduated cylinder (mL)10 mlMass of rubber stopper (g)11.15Volume of water and rubber stopper (mL)16.5 Part IIIb (6 points) Volume of water in graduated cylinder (mL)20Mass of iron nail (g)3.66Volume of water and iron nail (mL)20.5 Part IV (20 points) Type of Aluminum FoilMass (g)Length (cm)Width (cm)Volume (cm3)Thickness (cm)Regular.63g15 cm 10.02 cm.21 cm3.0014 cm Heavy Duty.97g15 cm10.01 cm .36 cm3.0024 cm B. Follow Up Questions Show all work for questions involving calculations. Part I Use the concepts/vocabulary of density to explain why the liquids formed layers in Part I of the procedure. (8 pts)

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

V=D*M V=7.042*5.0 V=35.21 g/mL 3. Based on previous experiences the following substances in order from the lowest density to highest are, styrofoam peanuts, pine 2” X 4” board, water, and finally, lead pipe. Styrofoam and pine have a lower density than water because they float. Furthermore, pine has a greater mass than styrofoam therefore, a less density than pine.

In the third stage of this experiment, the density of a liquid was determined and compared to known standards. A 100ml beaker was filled to about half-full with room-temperature distilled water. The temperature of the water in ◦C was recorded in order to compare to known standards later. A 50ml beaker was then weighed on a scale in order to determine mass and recorded. A sample of the distilled water with an exact volume of 10ml was then placed in the 50ml beaker using a volumetric pipette. The 50ml beaker with the 10ml of water was then weighed again and the initial mass of the beaker was subtracted from this mass to obtain the mass of the 10ml of water. With the volume and the mass of the water now known, density was calculated using d = m/V and recorded in g/ml. This process was then repeated to check for precision and compared to standard values to check for accuracy. Standard values were obtained from CRC Handbook, 88th Ed.

Conclusion: The purpose of this lab was to find the relationship between the mass and the volume of the four samples. The densities from least to greatest were shortest(4), short(3), medium(2), and longest(1). Density can vary with temperature, and that could cause errors in the collected data. A real world application of density is icebergs. Icebergs float because they are less dense than the water around them. The icebergs are made of frozen freshwater but they are surrounded by very cold salt water. Initially, salt water has a higher density than freshwater and the low temperatures of the water cause the density to increase even more. The salt water and its increasingly high density allows for the less dense icebergs to float. Knowing this about density is good to know so we can figure out how things in the world work, like how and why massive icebergs float in the middle of the

1. Objective: My objective for this experiment is to find the mass, volume, and density of a variety of objects. After this, I will record my data and place a select few of the items on a graph. My hypothesis for this experiment is, "If I measure the mass of every object, the wooden ball will have the least because it seems to be the smallest and most lightweight. " 2.

In this lab, the density of 20 glass beads were determined using two different methods and the results were compared to see how close the values were to each other. In first method the volume of each individual bead was measured using the diameter of each bead, along with the mass. In the second method the beads we treated as a whole unit. The total mass was measured and volume was measured based on the amount of water that was displaced in a graduated cylinder. Then, the beads were swapped with 20 different glass beads of the same type. The procedure was repeated and the results were compared to the data of the first bead set to look for any systematic errors that may have occurred. During the experiment, the data was

Density is a big part of what makes a cookie. You have to make sure you add all the ingredients correctly. This is big when you are making the dough from scratch. Density is actually an object’s comparison on mass and volume. Density is the mass divided by volume. On this equation, weight/mass of something increases, but if the volume is the same, the density goes up. If the mass decreases and the volume stays the same, the density goes down. Lighter liquids are less dense unlike heavy liquids.

In class we did a lab that helped displayed density. Density is the degree of compactness in a substance. To calculate a specific amount of density you will need to divide the mass by the volume and your quotient should be the density. In our investigation we were told to manipulate the density of the water using different amounts of salt to make an egg float, sink , and levitate, using various amount of trials. The materials we were given for this investigation was water, a beaker, and an egg.

Density: the compactness of a substance. That is the first thing that came to mind when I saw that diet coke floated in water and the cherry coke that sank in water. My group members and I measured the density of all three substances (diet coke, cherry coke, and water) and collected the data to see if density really was the cause. Based on our results, it turns out density really is the reasons diet floats and cherry sinks. After we collected our data from the lab, we did many calculations and found that the diet coke average density was 0.950 g/ml, cherry coke was 1.0 g/ml, and water was 0.990 g/ml. Based on the universal definition of density, the mathematical reason why diet floats in water and cherry coke sinks is because the density of

The experiment used a Vernier caliper to measure the height and the diameter of a cylinder. A Vernier caliper was also used to measure the diameter of the sphere. A meter stick was used to measure the length, width, and height of the wooden block. The precision of an instrument such as a Vernier caliper or a meter stick determines how many significant figures the data is presented in. The mass of the objects being tested will be measured using an electronic balance. The equations used in this experiment to determine the volumes were the volume of the cylinder: πr2h; volume of the block: (length)*(width)*(height); and the volume of the sphere: (4π/3) (r3). The volumes of these objects will be divided by their respective masses to determine the density of each object.