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polet [3.4K]
3 years ago
7

What is the density of a piece of metal in g/cm3 if its mass is determined to be 42.20 g and it is in the shape of a cube, with

edge length of 2.50 cm?
Chemistry
2 answers:
kotykmax [81]3 years ago
8 0

Answer : The density of a piece of metal is 2.7008g/cm^3

Explanation :

To calculate the volume of cube, we use the formula:

V=a^3

where,

a = edge length of cube

Given :

Edge length of cube = 2.50 cm

Volume of cube = (2.50cm)^3=15.625cm^3

Given :

Mass of metal = 42.20 g

To calculate density of a substance, we use the equation:

Density=\frac{Mass}{Volume}

Putting values in above equation, we get:

\text{Density of metal}=\frac{42.20g}{15.625cm^3}=2.7008g/cm^3

Hence, the density of a piece of metal is 2.7008g/cm^3

maria [59]3 years ago
4 0
It's a cube so the volume = edge^3
Volume = 2.5^3 cm^3 = 15.625 cm^3

density = mass / volume = 42.20 / 15.625 = 2.70 You have 3 places of accuracy.

density of object = 2.70 grams / cm^3 <<<<=== answer.
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