Mass Volume and Density Lab Report

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Description

Hello, will attach all the instructions below!!

Part 1: Density Tower @ Home

Part 2: Modified Lab Manual with Data Provided

Data

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Explanation & Answer

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Aluminum Foil
Part 1: Data and Calculations
Crumbled aluminum ball: sank
Tightly compacted folded aluminum: floated
Both are of approximately equal mass. But the volume of the crumbled ball is more than that of
the tightly folded aluminum foil. So, the crumbled aluminum ball has less density because it’s
relatively spread out and contains more air. However, the tightly compacted folded aluminum
has more density because the particles are crowded into a smaller space. Objects with less
density tend to float while those with more density sink.

Part 2: Determining the density and thickness of aluminum foil
Smallest increment on your ruler: 0.1 cm
Width of foil: 30.4 cm
Length of foil: 40 cm
Area of foil = lw=30.4 cm x 40 cm= 1.22 x 103 cm2
Diameter of Aluminum ball: 1.6 cm

Radius of Aluminum ball: diameter/2 = 0.8 cm
Volume of Aluminum ball= = (4/3)π r3 = (4/3) x 3.14 x (0.8 cm)3= 2.14 cm3
Mass of foil= 6g Used electronic balance
Density of Aluminum Foil= mass/volume= 6 g/2.14 cm3 = 2.80 g/ cm3
Thickness of Al foil = volume/area = 2.80 cm3/ 1190 = 0.00235 cm
Convert to thickness in inches: 0.00235/2.54 = 0.000925 inches
% error = (experimental –true)/ true x 100 = (2.8 – 2.7)/ 2.7 x 100= 3.7 %

Post-lab Questions:
1. 𝑉𝑜𝑙𝑢𝑚𝑒 = 𝑙𝑒𝑛𝑔𝑡ℎ × 𝑤𝑖𝑑𝑡ℎ × ℎ𝑒𝑖𝑔ℎ𝑡 = 𝑙𝑑ℎ = 8.2𝑐𝑚 × 3.25𝑐𝑚 × 0.50𝑐𝑚 =
13.325 𝑐𝑚3
𝑚𝑎𝑠𝑠

𝑔

2. 𝑑𝑒𝑛𝑠𝑖𝑡𝑦 = 𝑣𝑜𝑙𝑢𝑚𝑒 𝑡ℎ𝑒𝑛, 𝑚𝑎𝑠𝑠 = 𝑑𝑒𝑛𝑠𝑖𝑡𝑦 × 𝑣𝑜𝑙𝑢𝑚𝑒 = 0.735 𝑐𝑚3 × 14.25𝑐𝑚3 =
10.47375 𝑔
3. 𝑡ℎ𝑖𝑐𝑘𝑛𝑒𝑠𝑠 =

𝑣𝑜𝑙𝑢𝑚𝑒
𝑎𝑟𝑒𝑎

=

6.2×10−3
31.2

= 1.987179 × 10−4 𝑐𝑚

4. No, in order ...


Anonymous
Great study resource, helped me a lot.

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