The density of a certain type of plastic is 0.76 g/cm3. If a sheet of this plastic is 10.0 m long, 1.0 m wide, and 1 cm thick, what is its mass?
mass = × 10 g
Enter your answer in scientific notation.
Answer
Density of plastic = 0.76 g / cm3
Volume of plastic = L x B x Thickness
= 10 m x 1 m x 1 cm
= 10 x 100 cm x 1 x 100 cm x 1 cm
= 105 cm3
mass = volume x density
= 105 cm3 x 0.76 g / cm3
= 7.6 x 104 g.
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