Multiple Choice
An object has a mass of 27 g and a volume of 9 cm^3. What is its density?
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1. Intro to General Chemistry
Density
Multiple Choice
Which of the following best represents the mass density of pure water at 4°C under standard atmospheric pressure?
A
1.00 g/cm^3
B
2.00 g/cm^3
C
0.80 g/cm^3
D
0.50 g/cm^3
Verified step by step guidance1
Understand that mass density is defined as mass per unit volume, mathematically expressed as \(\rho = \frac{m}{V}\), where \(\rho\) is density, \(m\) is mass, and \(V\) is volume.
Recall that pure water has its maximum density at 4°C under standard atmospheric pressure, which is a well-known physical property.
Recognize that the commonly accepted density of pure water at 4°C is approximately 1.00 g/cm\(^{3}\), meaning 1 gram of water occupies 1 cubic centimeter of volume.
Compare the given options to this known value to identify which one best matches the standard density of water at 4°C.
Conclude that the value closest to 1.00 g/cm\(^{3}\) is the best representation of the mass density of pure water at 4°C under standard atmospheric pressure.
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