객관식
Which statement about density is true?
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1. Intro to General Chemistry
Density
객관식
If you have 20 mL of pure water at room temperature, what is its mass in grams?
A
0.2 g
B
20 g
C
2 g
D
200 g
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검증된 단계별 안내1
Identify the physical property that relates volume and mass for water, which is its density. At room temperature, the density of pure water is approximately 1 g/mL.
Write down the formula that relates mass, volume, and density: \(\text{mass} = \text{density} \times \text{volume}\).
Substitute the known values into the formula: density = 1 g/mL and volume = 20 mL.
Calculate the mass by multiplying the density by the volume: \(\text{mass} = 1 \frac{g}{mL} \times 20 \ mL\).
Interpret the result as the mass of the water in grams, which corresponds to the volume given.
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