Ashley Robins
9/13/11
Honors Chemistry
Period 4
Density Lab
Purpose:
1. To determine the density of a solid using different laboratory techniques for measuring volume. 2. To use the intensive property of density to identify an unknown substance.

Procedure:
1. Obtain a bag marked with a number containing a cube and a cylinder from the teacher. Record the number on the bag in the data table.

Density of a cube:
Using a balance, record the mass of the cube to the nearest tenth of a gram. Then measure the length, width and height of the cube to the nearest hundredth of a cm. Last, calculate the volume of a cube using the formula L x W x H.

Density of a cylinder by water displacement:
Using a balance, record the mass of the cylinder to the nearest tenth of a gram. Then fill a graduated cylinder of water about half full. Record the volume to the nearest tenth of a mL. After that you carefully drop the cylinder in the graduated cylinder and record the new volume of water to the nearest tenth of a mL. The last thing you do is subtract the volume of the water you had at the beginning from the volume of water you had after adding the cylinder. This number is the volume of your cylinder.

Data:

Cube Cylinder Mass of cube:10.4g Mass of cylinder: 29.1g Length of cube:2.50cm Volume of water before adding: 49.0mL Width of cube:2.50cm Volume of water after adding: 52.0mL Height of cube:2.50cm Volume of cylinder: 3.0mL Density of cube:.693g/cm3 Density of cylinder: 9.7g/cm3

Conclusion:
This lab is meant to teach you how to use certain lab instruments and how to find the density of objects by using water displacement. It is also supposed to teach you how to determine what an object is by finding its density. Some important terms in this lab are water...

...Per. 3
Density of Metal Lab
I. Purpose and Procedure
In this experiment, groups were each given two unknown metals in which they had to find the mass, volume, and density. After finding the density of the unknown metals by dividing the mass by the volume, the groups had to exchange data and find the average densities of the two unknown metals. A table of accepted value of metals and their...

...LAB ACTIVITY 1
MEASUREMENTS IN SCIENCE: MASS, VOLUME, AND DENSITY
Purpose:
The purpose of this experiment is find the density of two metals using their mass and volume.
Introduction:
The purpose of the experiment that was conducted was to measure and calculate the density of two different metals. Density is an important characteristic of a material. The density of an object shows how much mass is...

...9/17/13
The Density of Metals Lab
BACKROUND: Density is a constant relationship between the mass and volume of a specific type of matter. Measurements of both mass and volume can be obtained for a metal sample. The relationship can be shown graphically by plotting the volume of a sample on the horizontal x-axis and the mass of the sample along the vertical y-axis. Plotting the values for several samples, a linear relationship can be seen for a...

...Abstract
The purpose of this experiment was to identify whether density is an extensive or intensive physical property. By using water displacement, the volumes of the paper clip samples were measured and the masses were obtained by using an electronic balance. Each mass and volume was unique to their sample so by using their values, density was used to identify substances in the lab. After conducting the experiment, the results showed that there...

...
Introduction:
Density is defined by its mass per unit volume, and is most often written in mathematical terms as; d = m / v
Mass is usually given in grams, g, and volume is given in cubic centimeters, g/cm3, or, grams per milliliter, g/mL. Density is not a property that depends upon the amount of substance present. For example, one gram of lead and one ton of lead have the same density. Density also does depend on...

...Lab Report
Question- Why do few objects float in water where as others sink?
Hypothesis- I think the objects that have a greater density than water will sink. So whichever object has a density more than 1g/cm³ will sink in water. This is known as relative density where the density of the substance is compared to the density of water. Hence, the object that has a greater mass: volume ratio than water will...

...purpose of this lab will be to investigate the concepts of accuracy and precision for quantitative measurements using density as an example. The density of a sample will be found experimentally and compared to a known value. The relationship of averages and different analysis techniques to percent error will also be explored.
Density is a characteristic of a substance which can qualitatively be described as the amount of matter (mass)...

...
EXPERIMENT-1
DENSITY OF LIQUIDS
PREPARED BY BURAK COBAN
PURPOSE:
In this experiment we will learn how can we find the density of liquids and liquids of density how change effect of temperature, pressure, mass, volume and concentration. For this reason we will take NaCI solutions with different concentrations and we will measure their densities, so we will find out the effects of concentration on...

1257 Words |
7 Pages

Share this Document

Let your classmates know about this document and more at StudyMode.com

## Share this Document

Let your classmates know about this document and more at StudyMode.com