Chemistry Lab

Density of Solids and Liquids

Introduction:

The introduction should include a basic definition of the density and specific gravity (not a mathematical definition). It also should let the reader know why density and specific gravity are important concepts. Then, it should include a statement of the more formal mathematical definition of these terms. Lastly, it should discuss the actual experiments you are going to write about. Do not go into details. You should discuss the details of the experiment in the procedure.

Procedure:

Volume and Density Measurements (Liquid)

Provide all the steps necessary for another student to repeat your experiment and obtain similar results. You should describe the equipment used in detail. For example, measure the side of a cube with a standard centimeter ruler. Or, weigh the object on an analytical balance, which measures to three decimal places. . The brand names of equipment are irrelevant. If you used a Wescott brand ruler, you should obtain the same results and if you use a Popin brand ruler.

Volume and Density Measurements (Solid)

1. Direct Measurement Method

Follow the same methodology used for A. Although you only performed the measurements for one liquid (your partner measure other other liquid), you should include the procedure for both liquids. My suggestion is to write a detailed procedure for one of the liquids and state that your repeated the same procedure for the other liquid.

2. Water Displacement Method

Table 1: Volume and Density Measurements (Liquid

	Water	Isopropyl Alcohol
Mass A: Graduated Cylinder (g)
Volume (mL)
Mass B: Graduated Cylinder with Liquid (g)
Mass B-A: Liquid (g)
Density (g/mL)
Percent Error (%)

Table 2: Magnet - Direct Measurement Method

	Magnet
Mass (g)
Length (cm)
Width (cm)
Height (cm)
Volume (cm3)
Density (g/cm3)

Table 3: Magnet – Water Displacement Method

	Magnet	Metal Bolt
Mass (g)
Initial Volume of Graduated Cylinder (mL)
Final Volume of Graduated Cylinder (mL)
Object Volume (mL)
Density (g/mL)

Discussion of Results:

This section you want to state the results from each part of the experiment, which are the measured densities. After stating the results, you need comment on if they are plausible. For example, we measured the density of the wooden cube to be 0.54 g/cm³. This value makes sense because we know that wood usually floats in water, which had a density around 1.0 g/cm³. Hey similar statement is needed for all of the results. If the results do not make sense, you should state hey prize of all there are you could have made during the experiment. Do not discuss math errors. Remember that you are required to discuss to possible errors. If you do not think you made an error, then discussed possible errors you could have made.

After discussing the results and error, you need a summary. should be three or four sentences to wrap everything up and let do you mean you know he or she is come to the end of your report. You do not need an extensive and detailed summary.

References:

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(2)