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What is the density of oxygen gas (O_2) at standard temperature and pressure (STP)?
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1. Intro to General Chemistry
Density
Multiple Choice
Which of the following is the approximate density of liquid water at room temperature (25°C)?
A
0.50 g/cm^3
B
10.0 g/cm^3
C
2.00 g/cm^3
D
1.00 g/cm^3
검증된 단계별 안내1
Recall that density is defined as mass per unit volume, expressed as \(\text{density} = \frac{\text{mass}}{\text{volume}}\).
Understand that the density of liquid water at room temperature (25°C) is a well-known standard value used as a reference in many chemistry problems.
Remember that the commonly accepted approximate density of water at 25°C is about 1 gram per cubic centimeter (\(1.00\ \text{g/cm}^3\)).
Compare the given options to this known value: 0.50, 10.0, 2.00, and 1.00 g/cm\(^3\).
Identify that the value closest to the known density of water at room temperature is \(1.00\ \text{g/cm}^3\), which is the correct choice.
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