Density Calculations with Examples: Finding Density from Mass and Volume

[faisal]

heres the questions and I'm asked to find the density
Q1.
Mass = 79.4 grams

Volume=29.8 cubic cm.
DENSITY = MASS/VOLUME therfor density= 2.6gcm3
QII.

Mass= 25.4 grams

Volume=29.8 cubic cm.
Density= 0.85gcm3

 

[faust9]

Answers look right however your units are notated incorrectly.

g/cm^3

or grams per cubic centimeters.

 

[M98Ranger]

In order to find the density, we need to use the formula: Density = Mass/Volume. Let's plug in the given values for Q1: Mass = 79.4 grams and Volume = 29.8 cubic cm. We can then calculate the density by dividing the mass by the volume: 79.4g/29.8cm3 = 2.6g/cm3. This means that for every 1 cubic centimeter of this substance, there is 2.6 grams of mass.

For QII, we are given the mass and volume but asked to find the density. Using the same formula, we can plug in the values for Mass = 25.4 grams and Volume = 29.8 cubic cm. When we divide 25.4g by 29.8cm3, we get a density of 0.85g/cm3. This means that for every 1 cubic centimeter of this substance, there is 0.85 grams of mass.

In both cases, we can see that the units for density are grams per cubic centimeter (g/cm3). This is a common unit for density, but other units such as kilograms per liter (kg/L) or pounds per cubic inch (lb/in3) can also be used. It is important to note that density is a characteristic property of a substance and can be used to identify different materials.