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amm1812
3 years ago
14

A cube of plastic 1.2x10^-5 km on a side has a mass of 1.1 g. what is its density in g/cm^3

Chemistry
2 answers:
Vesna [10]3 years ago
7 0
Length of 1 side 1.2*10^-5km =1.2*10^-5*10^5 =1.2cm 

<span>volume of the cube (1.2)^3=1.728 cm^3 </span>

<span>density= mass/volume= 1.1/1.728=0.636 g/cm^3</span>
gizmo_the_mogwai [7]3 years ago
5 0

Answer:

0.6366  g/cm^3 is the density of the cubic plastic.

Explanation:

Mass of the cubic block= m = 1.1 g

Volume of the cubic block = V

Volume of the cube = a^3

a = side length = 1.2\times 10^{-5} km = 1.2 cm

1 km = 100,000 cm

Volume of cubic block = V=(12 cm)^3=1.728 cm^3

Density of the solid block,d = ?

Density=\frac{Mass}{Volume}

d=\frac{m}{V}=\frac{1.1 g}{1.728 cm^3}=0.6366 g/cm^3

0.6366 g/cm^3 is the density of the cubic plastic.

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