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3 years ago

If an object has a mass of 25g and a volume of 5cm what is the density

Chemistry

1 answer:

sergij07 [2.7K]3 years ago

5 0

Density= 5m^3

Explanation:

Here, the Mass of an object is 25g

To convert grams into kilograms, we need to divide 25 by 1000

so, the 25g=25/1000 = 0.025kg.

The volume of an object is given by 5cm^3 ( cubic centimetre)

To convert cubic centimetre to meter cube, we need to divide 5 by 1000.

So, 5cm^3=5/1000=0.005m^3

Finally, the equation of density is

DENSITY= MASS/VOLUME

Density = 0.025/0.005

= 5m^3

Hence, the density of the object is 5m^3.

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Answer:

The section of the bar is 2.92 inches.

Explanation:

Mass of the steel cut ,m = 1.00 kg = 1000 g

Volume of the steel bar = V = Area × height

Height of the of the section of bar = h

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Cross sectional area of the steel mass = A

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$V = 2.71 inches^2\times h$

Density of the steel = d = $7.70 g/cm^3$

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$\frac{7.70 g}{0.0610237 inches^3}=\frac{ 1000 g}{2.71 inches^2\times h}$

$h=\frac{ 1000 g\times 0.0610237 inches^3}{2.71 inches^2\times 7.70 g}$

h = 2.92 inches

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If an object has a mass of 25g and a volume of 5cm what is the density ​

If an object has a mass of 25g and a volume of 5cm what is the density