The densities of the coinage metals (copper, silver, and gold) are as follows: copper = 8.95 g/cm³
Silver = 12.59 g/cm³
Gold = 19.32 g/cm³
A sample of material is found to weigh 15.12 grams and have a volume of 1.20 cm³. The sample could be which of the coinage metals?

Question

Quizplus · Accepted Answer

To determine which coinage metal the sample is made of, we need to calculate its density by dividing its mass by its volume. Density= Mass/Volume Density= 15.12 g / 1.20 cm³ Density= 12.6 g/cm³ or 12.59 g/cm³ (rounded to two decimal places) Comparing this density to the densities of the coinage metals, we see that it is closest to silver, which has a density of 12.59 g/cm³. Therefore, the sample is most likely made of silver.

The Densities of the Coinage Metals (Copper, Silver, and Gold)