Question

consider the following metals and their densities: element density (g/ml) zinc 7.13 cobalt 8.86 gold 19.3 platinum 21.46 magnesium 1.74 if there are samples of zinc, cobalt, gold, platinum, and magnesium, where each sample has the same volume, which of the metals will have the greatest mass? select the single best answer. zinc cobalt gold platinum magnesium

Explanation:

Step1: Recall density - mass - volume relationship

The formula for density is $
ho=\frac{m}{V}$, where $
ho$ is density, $m$ is mass and $V$ is volume. Rearranging for mass gives $m =
ho V$.

Step2: Analyze given densities with equal volumes

Since $V$ is the same for all samples, the metal with the highest density will have the greatest mass. Among the densities: zinc ($7.13\frac{g}{mL}$), cobalt ($8.86\frac{g}{mL}$), gold ($19.3\frac{g}{mL}$), platinum ($21.46\frac{g}{mL}$), magnesium ($1.74\frac{g}{mL}$), platinum has the highest density.

Answer:

platinum