Lab Report Chemistry Lab

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

This hypothesis is based off of the idea of water density and how it changes when a substance is added or removed. A material's density is defined as its mass per unit volume. It is, essentially, a measurement of how tightly matter is crammed together (Jones, 2015). Every matter in the world has its own specific density. Density can be calculated by multiplying the mass times the volume. Water's density can change when a substance is added or when the temperature is increased or decreased with the normal density of water is just under 1 gram per

Purpose: Weighing objects. Figuring out the density with an object by calculated volume and Archimedes’ Principle.

The primary goal was to see if height and density had any correlation. To do the experiment we measured the height and mass of the volunteers carefully, then measure the initial volume of water. Volunteers to enter the water slowly, measure and calculate the volume of each person. We calculated the density of each person by dividing the mass of the human by the the volume of the human (Density = M/V).

Density is independent of size,which means if the sample size increases the mass will,but the density will stay the same.

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

___The helium in the tank must be more dense than the helium in the balloons. ______________________________________________________________________

The reason for the increase in the density, which is the relationship between the mass

Buoyancy the ability or tendency to float in water or air or some other fluid. I will tell you about an upward force of the fluid which resists the weight of immersed objects. The density of the atmosphere depends on the altitude. Can you tell me about buoyancy in simple words? It tells you about the ability of an object to float on the water or liquid. You can determine whether the object will float or not by checking the relation between the weight of the water and the weight of the

3. Analyze: What do you notice about the density of the Styrofoam pieces? The density remains the same.

Since this solid block is more dense than water (1.536 g/cm3 > 1 g/cm3) it will sink.

Abstract: The objective of the lab is to determine the volumes of the polystyrene spheres with three different measuring tools: Water Displacement, Analytical Scale, and Triple Beam Balance Scale. The experiment is meant to help understand the concept and application of precision and accuracy in experimental measurements. Accuracy is a measure of how closely the results of repeated measurements are to the true value of what is being measured. Precision is the variability in the results from the repeated measurements, and how close the repeated measurements were to one another. In this lab, the method for measuring the volume of the polystyrene spheres is done with the previously stated tools: Water Displacement, Analytical Scale, and Triple Beam Balance Scale. The standard deviation for the entire classes volumes and masses are recorded to determine the densities.

Due to the density of the Dead Sea Water, Ocean Water, and DI Water being lower the the calculated density of the golf ball it is hypothesized that the golf ball will sink in all three water samples. This hypothesis was reach based on the ranged of the water sample desity being from .8452 g/mL to 1.005 g/mL while the density of the golf ball is 3.779 g/ mL.After completing the experiment the hypothesis was found to be incorrect. The experiment resulted in the golf ball sinking in two water samples and floating in one water sample. The two most translucent water samples, Ocean Water and DI Water, with densities of .8585 g/mL and .8452 g/ mL were the water samples the golf ball sunk in. The golf ball floated in the least translucent water

I believe that my ship will probably float. Our ship will float in neutral buoyancy. Neutral buoyancy means the force of gravity is equal to the force of buoyancy. I know that in this challenge we had to find the greatest load that a canister would hold, but to have neutral to positive buoyancy. In my group we decided to use the guess and check method. We measure the density of an empty canister that we were given, SS Mr. Crabs. Now, we have to measure the density we need to find the mass and the volume. The mass is the amount of matter in an

In Measuring and Understanding Density, several experiments were performed to find density of regularly shaped objects, irregularly shaped objects, liquids and gasses. An additional experiment was done to find the specific gravity of a sampling of liquids. The purpose of the experiment was to provide a better understanding of density and to be able to extrapolate unknowns based upon these calculations. The experiments yielded data in keeping with Kinetic-molecular theory in regards to the density of water versus its temperature. Key measurements and formulae were also used to determine densities of metal and plastic objects as well as irregularly shaped rocks. It is possible to find the density of an object (be it liquid, gas or