To calculate the density of the apple juice, you can use the formula:
\[ \text{Density} = \frac{\text{Mass}}{\text{Volume}} \]
Given:
- Mass of the apple juice = 0.25 kg = 250 g (since 1 kg = 1000 g)
- Volume of the apple juice = 320 cm³
Now, applying the formula:
\[ \text{Density} = \frac{250 , \text{g}}{320 , \text{cm}^3} \approx 0.78125 , \text{g/cm}^3 \]
When rounded, this is approximately 0.78 g/cm³.
Thus, the correct response is:
0.78 g/cm³ (or 0.78 g per cm cubed).