Multiple Choice
Given that water has a density of approximately 1000 kg/m^3 and the total volume of Earth's oceans is about 1.35 × 10^9 km^3, estimate the mass of Earth's oceans in kilograms.
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1. Intro to General Chemistry
Density
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Which equation correctly expresses the relationship between mass (m), volume (V), and density (d)?
A
d = V / m
B
V = d imes m
C
d = m / V
D
m = d / V
Verified step by step guidance1
Recall the definition of density, which is the mass of a substance per unit volume. This relationship is expressed as density (d) equals mass (m) divided by volume (V).
Write the formula for density: \(d = \frac{m}{V}\).
From this formula, you can rearrange to solve for mass by multiplying both sides by volume: \(m = d \times V\).
Similarly, to solve for volume, rearrange the original formula by dividing mass by density: \(V = \frac{m}{d}\).
Compare the given options to these formulas to identify the correct expression that relates mass, volume, and density.
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