1. Calculate the density of a material that has a mass of 52.497 g and a volume of 18.5 cm3.
2. A student finds a rock on the way to school. In the laboratory he determines that the volume of the rock is 29.7 cm3, and the mass in 139.943 g. What is the density of the rock?
3. If 130.943 g of a liquid occupy a space of 135.0 ml, what is the density of the liquid in g/cm3?
1. d= 52.497 g / 18.5 cm^3 = 2.84 g/cm^3
2. d= 139.943 g / 29.7 cm^3 = 4.71 g/cm^3
3. d= 130.943 g/ 135.0 mL = 0.969 mL or .970 mL
mass=20g
Volume=40ml
To calculate density, you need to know the mass and volume of the material. Density is expressed in units of mass per unit volume, such as grams per cubic centimeter (g/cm³).
Here's how you can calculate the density for each scenario:
1. For the first question, you are given a mass of 52.497 g and a volume of 18.5 cm³. To find the density, divide the mass by the volume:
Density = Mass / Volume
Density = 52.497 g / 18.5 cm³
2. In the second scenario, the student measures a volume of 29.7 cm³ and a mass of 139.943 g. To calculate the density, divide the mass by the volume:
Density = Mass / Volume
Density = 139.943 g / 29.7 cm³
3. Lastly, in the third scenario, you have a mass of 130.943 g and a volume of 135.0 ml. Before calculating the density, you need to convert the volume from milliliters (ml) to cubic centimeters (cm³) since the units need to be consistent:
Density = Mass / Volume
Density = 130.943 g / 135.0 cm³
By performing the division in each scenario, you will obtain the density of the given materials in units of grams per cubic centimeter (g/cm³).