Density

Introduction: Density is how tightly packed matter is within a substance. Density is not to be confused with volume or mass. Volume is how much space an object occupies whereas mass is the quantity of matter that is within an element. In order to calculate density, the mass of the substance is divided by the volume of the substance. Density is the same for every substance. For example, all aluminum samples have the same density regardless of their mass. Each element on the periodic table has an atomic number. This number identifies which element is which and also shows how many protons are in the nucleus of the element. The purpose of the experiment was to determine whether or not a higher atomic number will result in a higher density compared to other substances with lower atomic numbers. In order to investigate the hypothesis, there were a series of steps used to collect data. The group collected data on multiple elements to calculate densities. The metals were then compared to find a trend in the data. The reasoning behind placing metals in 50 mL of water, as opposed to 10 mL of water. The greater amount of water used results in a more accurate reading of the volume. More water in the…

Experiment 1 Density By Jessica Schmidt Chem 112L-S23- Athukoralage Gunawardana September 20, 2016 Erin Whitehouse The first part of the experiment consisted of finding the accuracy and precision of three different measuring devices, a 50mL beaker, a 25mL graduated cylinder and a 25mL pipette. The mean volumes and uncertainties were found to be 22.5mL 1.9, 23.72 .25, and 24.89 .43, respectfully. The 25mL pipette was found to be the most accurate out of the three. The density of water was…

Objective- Our goal for this lab was to calculate the Density of a substance. We needed to make sure we had the materials to find mass and volume and then use a formula to calculate density. Introduction- The main principle of this experiment was to figure out the Density of certain objectives given to us in the lab. We had to know the the formula D-M/V in order to find the density of that object.We also needed to know the density of water(1.0 g/l) in order to predict if something would float…

Density of Sand The objective of this lab is to use knowledge from previous labs, like the density of water and solids lab, and apply it to find the density of sand. First you must weigh your graduated cylinder, and record the weight, then pour in whatever amount of sand you choose. You then must weigh that to find the mass, and subtract whatever you got by the mass of the graduated cylinder. After that you pour in some water, and find the difference of how much the water went up and, what the…

Introduction and Theory: The lab conducted was to investigate the density of not only copper but also diet and non-diet soda. Techniques used in the experiment included water-displacement, measuring copper’s dimensions, and using volumetric pipettes to measure out specific soda volumes. Beginning Question(s): How does the use of two experimental methods, improve the chances of calculating the density of copper? How does the density of non-diet soda compare to that of diet soda measured at…

introduction to the Balance and the Determination of Density Purpose: To make measurements and collect data to determine the physical properties of matter; density, volume, and mass. Materials: Graduated Cylinder Balance Water Unknown Liquid Paper Towels Weighing Paper Weighed Solid (Rubber stopper) Procedure: Part A Obtain a 10 ml graduated cylinder and measure its mass on the balance. Record. Pour water inside the graduated cylinder. In other to get the correct measurement of volume, read…

Density Open Response Density Density is the mass per unit of volume of a substance. Density is measured in grams per milliliter (g/mL), or grams per centimeters cubed (g/cm3). The density of an object is what causes it to sink or float. If an object has higher density than the liquid it is being placed into, it will sink. If an object has a lesser density than the liquid it is being placed into it will float. For example, the density of…

The goal of the experiment is to find out the density of an unknown liquid and solid by measuring their mass and volume. A decigram balance is used to measure the mass of the substances, and a cylinder is used to determine their volume. The major result of this experiment is that by measuring the mass and volume of the unknown solid and liquid, the density can be calculated easily and accurately. Introduction The density of a given amount of substance is depended on its mass and volume. Density…

The Relationship between Mineral Type and Density (g/ml) Purpose/Introduction: The purpose of this lab was to understand the relationship between minerals and density, the ratio of mass to volume, particularly, how density can be used to identify mineral type. In the lab, two samples of the mineral, feldspar, were measured for mass and volume in order to calculate their density. Many of the mineral tests yielded qualitative data, such as color, streak, luster, and crystal shape, which can be…

My experiment will show how the ratio of object density of the water density is a primary factor of the object’s buoyancy. Buoyancy is the ability or tendency of an object to float in water. I will show this effect by adding a measured amount of salt to purified water. What factors impact buoyancy? The object’s density versus the density of the water the object is placed in. So if the object is less dense it will float, if denser than water it will sink. The factors of this experiment will be…