To calculate the density of the unknown substance, you can use the formula:
\[ \text{Density} = \frac{\text{Mass}}{\text{Volume}} \]
Given:
- Mass = 4725 grams
- Volume = 350 cm³
Now, substituting the values into the formula:
\[ \text{Density} = \frac{4725 \text{ g}}{350 \text{ cm}^3} \approx 13.50 \text{ g/cm}^3 \]
With the calculated density of approximately 13.50 g/cm³, you would then compare this value to a provided chart of substances and their densities to identify the unknown substance.
If you provide a chart or list of known substances and their densities, I can help you identify which substance it may be.