Calculate:what is the density of a metal block that has a mass of 750 grams and a volume of 55 cubic centimeters?
D=m/v
D=750/55
D=13.63
D=13.6 (rounded)
Although many regents exams provide a resource sheet with this equation and many others, Brian is absolutely right in that you should memorize this equation.
Mercury
Mercury is a chemical element with the symbol Hg and atomic number 80. It is a silvery-white metal that is liquid at room temperature and is commonly known as quicksilver. Mercury is the only metallic element that is liquid at standard conditions for temperature and pressure. It is a very dense and highly toxic metal that can cause severe health problems if ingested or inhaled. Mercury has many industrial uses, including in thermometers, fluorescent lights, and dental fillings, but these uses have decreased in recent years due to environmental and health concerns.
To calculate the density of a substance, you need to divide the mass of the object by its volume. In this case, you have the mass of a metal block, which is 750 grams, and the volume, which is 55 cubic centimeters.
Density (ρ) = mass (m) / volume (V)
Substituting the given values:
ρ = 750 grams / 55 cubic centimeters
Therefore, the density of the metal block is 13.636 grams per cubic centimeter (g/cm³).
density= 750/55 g/cm^3
Density= Mass divided by Volume.
This must be memorized for science.
I'm sure you can work the rest for yourself.