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Which property is defined as the amount of mass per unit volume of a substance?
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1. Intro to General Chemistry
Density
Scelta multipla
Which of the following correctly describes how to calculate the density of an object?
A
Add the mass and volume of the object together (density = mass + volume)
B
Divide the mass of the object by its volume (density = mass / volume)
C
Subtract the volume from the mass of the object (density = mass - volume)
D
Multiply the mass of the object by its volume (density = mass × volume)
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Recall the definition of density in chemistry: density is a measure of how much mass is contained in a given volume of a substance.
Express this relationship mathematically as density equals mass divided by volume, which can be written as \(\text{density} = \frac{\text{mass}}{\text{volume}}\).
Understand that adding, subtracting, or multiplying mass and volume does not represent the physical meaning of density and will not give the correct value.
Identify that to calculate density correctly, you must take the mass of the object (usually in grams or kilograms) and divide it by its volume (usually in cubic centimeters or liters).
Therefore, the correct method to find density is to use the formula \(\text{density} = \frac{\text{mass}}{\text{volume}}\).
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