객관식
Which of the following best describes the concept of density and what it reveals about a substance?
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1. Intro to General Chemistry
Density
객관식
A block has a mass of 250 g and a volume of 200 cm^3. Given that the density of water is 1.00 g/cm^3, what is the density of the block?
A
1.00 g/cm^3
B
1.25 g/cm^3
C
2.00 g/cm^3
D
0.80 g/cm^3
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검증된 단계별 안내1
Identify the given quantities: mass of the block \(m = 250\ \text{g}\) and volume of the block \(V = 200\ \text{cm}^3\).
Recall the formula for density, which is the ratio of mass to volume:
\(\text{Density} = \frac{\text{Mass}}{\text{Volume}}\)
Substitute the given values into the density formula:
\(\text{Density} = \frac{250\ \text{g}}{200\ \text{cm}^3}\)
Perform the division to find the density value (do not calculate the final number here, just set up the expression).
Compare the calculated density with the density of water (\(1.00\ \text{g/cm}^3\)) to understand if the block is more or less dense than water.
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