A package of aluminum foil is 66.7 yards long, 12 inches wide, and 0.00030 inches thick....

A package of aluminum foil is 66.7 yards long, 12 inches wide, and 0.00030 inches thick. Aluminum has a density of 2.70 g/cm^3. What is the mass, in grams, of the foil?

a. 250 grams

b. 380 grams

c. 100 grams

d. 8.8 grams

Solutions

Expert Solution

answer : b.) 380 grams

length = 66.7 yards

= 66.7 x 0.9144 m

= 60.99 m

= 6099 cm

width = 12 inches = 12 x 2.54

= 30.48 cm

thickness = 0.00030 in = 0.000762 cm

volume = length x width x thickness

= 6099 x 30.48 x 0.000762

= 141.655 cm^3

density = mass /volume

2.70 = mass / 141.655

mass = 380 g

queen_honey_blossom answered 1 year ago

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