Question

Number 14 please help.. chemistry

Answer 1

Taking into account the definition of density, the mass of a substance with a volume of 150 cm³ and a density of 1.5 $\frac{g}{cm^{3} }$  is 225 grams.

What is density

Density is defined as the property that matter, whether solid, liquid or gas, has to compress into a given space.

In other words, density is a quantity that allows us to measure the amount of mass in a certain volume of a substance.

Then, the expression for the calculation of density is the quotient between the mass of a body and the volume it occupies:

$density=\frac{mass}{volume}$

From this expression it can be deduced that density is inversely proportional to volume: the smaller the volume occupied by a given mass, the higher the density.

Mass of the substance in this case

In this case, you know that:

• Density= 1.5 $\frac{g}{cm^{3} }$
• Volume= 150 cm³

Replacing in the definition of density:

$1.5 \frac{g}{cm^{3} } =\frac{mass}{150 cm^{3} }$

Solving:

mass= 1.5 $\frac{g}{cm^{3} }$  ×150 cm³

mass= 225 g

In summary, the mass of a substance with a volume of 150 cm³ and a density of 1.5 $\frac{g}{cm^{3} }$  is 225 grams.

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