Given that the density of hydrogen is 0.0000899 g/cm³, a reasonable estimate of this density can be rounded to a simpler value for approximation purposes.
Since the density is very low, you could estimate it as approximately \( 0.0001 , \text{g/cm}^3 \) or even \( 0.00009 , \text{g/cm}^3 \), depending on the context and level of precision required.
In summary, reasonable estimates could be:
- \( 0.0001 , \text{g/cm}^3 \)
- \( 0.00009 , \text{g/cm}^3 \)
Make sure to choose an estimate that aligns with the level of precision you need.