Question

1. a shiny, gold - colored bar of metal weighing 57.3 g has a volume of 4.7 cm³. is the metal bar pure gold? 3.4

Explanation:

Step1: Recall density formula

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

Step2: Identify given values

We are given $m = 57.3\ g$ and $V=4.7\ cm^{3}$.

Step3: Calculate density

Substitute the values into the formula: $
ho=\frac{57.3}{4.7}\ g/cm^{3}\approx12.2\ g/cm^{3}$.
The density of gold is approximately $19.3\ g/cm^{3}$. Since the calculated density of the metal bar ($12.2\ g/cm^{3}$) is different from the density of gold, the metal bar is not gold.

Answer:

The metal bar is not gold.