The density of mercury, the only metal to exist as a liquid at room temperature, is 13.6 g/cm³. What is that density in pounds per cubic inch? (1 in = 2.54 cm; 1 lb = 454 g)

Question

Quizplus · Accepted Answer

To convert the density of mercury from g/cm³ to lb/in³, use the conversion factors 1 in = 2.54 cm and 1 lb = 454 g. First, convert the density to g/in³: $13.6 \, \text{g/cm}^3 \times (2.54 \, \text{cm/in})^3 = 13.6 \times 2.54^3 \, \text{g/in}^3$. Then, convert g to lb: $\frac{13.6 \times 2.54^3}{454} \, \text{lb/in}^3$. This calculation results in approximately 0.491 lb/in³.

The Density of Mercury, the Only Metal to Exist as a Liquid