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Platinum metal is used in jewelry; it is also used in automobile catalytic converters. What is the mass of a cube of platinum 4.40 cm on an edge? The density of platinum is 21.4 g/cm^3?

1 Answer

Aug 29, 2016

Volume of this cube is 85.184 cm^3 and mass=1822.94 grams

Explanation:

Volume of this cube $V = a^{3}$ $V= a^3$

$V = {4.4}^{3}$ $V=4.4^3$

$V = 85.184 c m^{3}$ $V=85.184 cm^3$

Since density (d) is 21.4 g per cubic centimeter

Mass will be $M = d \cdot V$ $M=d*V$

$M = 21.4 \cdot 85.184 = 1822.94 g r a m s = 1.82 k g$ $M=21.4*85.184 = 1822.94 grams = 1.82 kg$

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