A. Density of liquids
Measure the mass of a graduated cylinder to the nearest 0.01g. Add water to the cylinder, calculate the new mass of the cylinder and water. Record the volume of water to the nearest 0.1 mL. Repeat steps 1-2 for additional liquids.

B. Density of solids using water displacement
1. Obtain a solid object and measure its mass to the nearest 0.01 g. 2. Fill a graduated cylinder about half full and read the volume to the nearest 0.1 mL. 3. Carefully place the solid in the water and record the new volume of water to the nearest 0.1 mL. 4. Repeat steps 1-3 for additional solids.

C. Density of solids using calipers
1. Obtain a solid object and measure its mass to the nearest .01 g. 2. Use calipers to measure the necessary dimensions to calculate volume. Record the measurements to the nearest 0.01 cm. 3. Repeat steps 1-2 for additional solids.

Calculations:
1. Volume of a solid using water displacement
Final volume of water - Initial volume of water = Volume of a solid a. Cube- 59mL – 40mL = 18mL
b. Cylinder- 14.5mL – 10mL = 4.5mL
c. Sphere- 6.4mL – 6mL = 0.4mL
2. Volume of solids using vernier calipers.
a. Cube- l * w * h
2.5 * 2.5 * 2.5 = 15.63

b. Cylinder- 3.14 * r² * h
3.14 * .95 * 3.57 = 10.12

Tables:
(mass of liquids)
Liquid | Empty Cylinder (g) | Cylinder w/ Liquid (g) | Volume (mL) | Density (g/mL) | % Error | Water (faucet) | 41.53 g | 51.79 g | 10.26 mL | 5.04 g/mL | 4.04% | Isopropyl | 41.53 g | 49.68 g | 8.15 mL | 6.1 g/mL | 6.80% | Vegetable Oil | 41.53 g | 50.50 g | 8.97 mL | 5.62 g/mL | 5.11% |...

...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 sink.
Materials-
* 1 measuring cylinder
* 1 rectangular prism
* 1 ball of plasticine
* 1 cylinder
* 1 cube
* 1 micrometer
* 1 vernier calliper
* 1 balance
Variables-
Independent- The object that was used
Dependent- The density of the object
Controlled- The water in the measuring cylinder
Procedure-
1. Get the 4 objects (rectangular prism, ball of plasticine, cylinder, and cube) that you’re going to experiment with.
2. Measure the mass of the rectangular prism by weighing it on the balance. Weigh it three times to get an accurate measurement. Then find the measurements of the length, width, and height using a vernier calliper. Use the formula l× b× h to find the volume. Divide the mass by the volume to get the density.
3. Measure the mass of the plasticine by weighing it on the balance. Weigh it three times to get an accurate measurement. Now fill up the measuring cylinder to a certain level and note it down. Next, drop the...

...Title of the Experiment: determination of densities
Introduction
The density of a sample of matter represents the mass contained within a unit volume of space in the sample. For most samples, a unit volume means 1.0 ml. The units of density, therefore, are quoted in terms of grams per milliliter (g/ml) or grams per cubic centimeter (g/cm3) for most solid and liquid samples of matter.
Density is often used as a point of identification in the determination of an unknown substance. The density of the unknown might be used to distinguish the unknown from a list of known substances. It is very unlikely for two substances to have the same density, and when coupled with boiling point and melting point it adds even more validity to the identity of the substance.
Density can also be used to determine the concentration of solutions in certain instances. When a substance is dissolved in water, the density of the solution will be different from that of the pure water itself. Handbooks list detailed information about the densities of solutions as a function of their composition (typically, in terms of percent substance in the solution). If a sample is known to contain only a single substance, the density of the solution can be measured experimentally, and then the handbook can be consulted to determine what...

...The Calculation of Density By Division of Mass and Volume
Max M. & Emily O.
09/08/13
Introduction/ Purpose/ Objectives
The purpose of this lab was to experimentally determine the density of three unknown objects, and to identify the objects based on their densities. A list of accepted chemical density values was given to identify these unknown compounds. A variety of simple lab techniques were used to obtain quantitative values for these unknown objects like the use of a digital analytical balance to obtain mass, or the measurement of volume by direct observation of a graduated cylinder and by use of a Vernier caliper. Because density is an intrinsic property of matter we are able to calculate and identify elements of matter by measurements of these extrinsic values. Thus proving density to be a fundamental property of matter.
Materials
Three objects of unknown density. 1 metal cylinder, metal shots, unidentified liquid.
digital analytical balance
vernier caliper
100mL graduated cylinder
50 mL graduated cylinder
pycrnometer
tap water
Methods
Experiment A. Determining the density of a metal cylinder.
1. Determining mass. select a metal cylinder from among those provided. Be sure that the selected cylinder is dry and clean of all debris. Determine its mass using a digital analytical balance and record. Make sure that the balance is clean,...

...Table 1: Density based on dimensional analysis
Trial 1 Trial 2 Trial 3 Units
Mass of sample 70.5466 70.5467 70.5465 g
Dimensions of sample Length 4.98 4.98 4.99 cm
Width 1.21 1.22 1.21 cm
Height 1.21 1.22 1.22 cm
Volum of sample 7.29 7.41 7.37 cm^3
Density of sample (based on dimensional analysis) 9.68 9.52 9.57 g/cm^3
Table 2: Density based on the displacement of water
Trial 1 Trial 2 Trial 3 Units
Mass of sample 70.5467 70.5465 70.5466 g
Final volume of the water in the buret (Vf) 29.83 13.11 25.51 ml
Initial volume of the water in the buret (Vo) 14.62 2.61 13.18 ml
Volume of the water dispensed from the buret (Vb=Vf-Vo) 15.21 10.50 12.33 ml
Volume of water level on graduated cylinder: Vgc 23.5 19.2 19.8 ml
Volume of sample 8.29 8.70 7.47 cm3
Density of sample 8.50 8.11 9.44 g/cm^3
2. CALCULATIONS
a. Relative Percent Error = IAbsolute ErrorI/True Value X 100%
IAbsolute ErrorI = ITrue Value - Measured ValueI
The Measured Value in my experiment based on table 2 is [(8.50+8.11+9.44)/3]= 8.68 g/cm^3
The True Value is 8.94 g/mL
Absolute Error = 8.94 - 8.68 = 0.26
Relative Percent Error = (0.26/8.94)x100=2.91 Using the correct number of significant figures,
gives us the answer: 3%
b. Density of metal bar using dimensional analysis
D = Mass/Volume (g/cm^3)
V = LxWxH = 4.98x1.21x1.21 =...

...Hamza Aziz
General Chemistry I Lab
09/12/2007
Lab 7
Density of Sprite and Diet Sprite
Abstract:
The density of regular Sprite was found to be 1.037 +/- g/mL. compared to Diet Sprite which was 0.9965 +/- g/mL. Among the three volumetric glassware Pipette was most precise (ó=0.0016 g/mL). Burette was the second best (ó=0.0023 g/mL) and graduated cylinder was the least precise (ó= 0.007 g/mL). Density was found to be intensive property. The slope of the graph of mass against volume was 1.05 g/mL, with the best linear fit for the data.
Introduction:
In chemistry, accuracy and precision are very important. Accuracy is the degree of conformity of a literature value and precision is a degree to which further calculated values show similar result. In this lab, the volume of the solution (diet or regular) is measured using the Pipette, Burette, and Graduated Cylinder respectively. The mass of the solution is then measured to calculate the density of the soda. Density is mass of a substance per unit volume2. How heavy the substance is according to its size or volume. The volume of liquid is measured in mL and mass in grams. Since, the density of water is 1g/cm3 ; therefore Diet Sprite's density should be equal to or a little bit more then water. The hypothesis was that regular Sprite will have higher density because it has a higher sugar concentration...

...Reporter: Issa Bianka T. Sadsad Instructor: Ms. Catherine Lapada
Section: 1 – 16 Date Performed: July 10, 2013
Group No.: 4 Date Submitted: July 17, 2013
Experiment #1: Measurements
INTRODUCTION
Density is a physical property of matter, as each element and compound has a unique density associated with it. The unit of Density is g/cm3 or g/mL. It is used to measure thr relative “heaviness” of objects with a constant volume. As defined, the formula for Density is Mass over Volume (ρ=m/v) and it can be rearranged to get the Volume (v=m/ρ) or Mass (m=ρv) of a certain substance. The objectives of this experiment are as follows:
To learn the proper techniques in measuring weight and volume.
To determine the densities of some solids and liquids.
To apply the rules of significant figures when reporting the weight, volume, and density of each material.
To apply our knowledge about the Water Displacement method to determine the Volume of an irregular solid.
The procedure in getting the Volume of a regular solid is different from an irregular solid. We use the Water Displacement method to get the Volume of an irregular solid whereas in a regular solid, we only multiply the length, width, and thickness of the solid.
Percentage Error is the absolute value of the difference of the Theoretical value and Experimental value all over the Theoretical Value multiplied to 100....

... Unknown Code: K
General Chemistry Laboratory
September 13, 2013
Experiment 1: Determination of Density
Introduction
The purpose of this experiment was to be able to measure the density of water and an unknown substance with a buret and an analytical balance. The density can be calculated by dividing the mass per volume. It was expressed in grams per cubic centimeters, or in this case, grams per milliliters.Density is a very important property that identifies the pure substance being measured without knowing what it is at a given temperature. The temperature is extremely important since it determines the state of the substance being used. Normally, substances expand as the temperature increases making them less dense. So, gases are less dense than liquids and liquids are less dense than solids. But in water, which is measured in this experiment, the solid state is less dense than the liquid state. This is because of the ice crystal structure the molecules form making them occupy more space than the molecules in liquid water. The substance with less density is always on top of the substance with more density.
In addition to measuring the density of water and an unknown substance with a buret and an analytical balance, accuracy and precision will be introduced which is determined by all the data acquired in the data tables.
Experimental
The...