Multiple Choice
Which of the following methods can be used to determine the density of an object?
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1. Intro to General Chemistry
Density
Multiple Choice
An object with which of the following densities will float on water?
A
1.10 g/cm^3
B
2.00 g/cm^3
C
1.00 g/cm^3
D
0.85 g/cm^3
Verified step by step guidance1
Recall the principle of buoyancy which states that an object will float on a liquid if its density is less than the density of that liquid.
Identify the density of water, which is approximately \(1.00\ \text{g/cm}^3\) at standard conditions.
Compare each given density value to the density of water: if the object's density is less than \(1.00\ \text{g/cm}^3\), it will float; if it is greater, it will sink.
Evaluate the given densities: \(1.10\ \text{g/cm}^3\), \(2.00\ \text{g/cm}^3\), and \(1.00\ \text{g/cm}^3\) are all equal to or greater than water's density, so these objects will not float.
Conclude that an object with a density of \(0.85\ \text{g/cm}^3\) (less than water's density) will float on water.
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