Density unit conversion from kg/m³ to g/m³

Steps:

• Use conversion factor: 1 kg = 1000 g, so multiply density by 1000 to get g/m³.
• Compute 22.000 kg/m³ × 1000 = 22,000 g/m³.
• Express in scientific notation: 22,000 = 2.2 × 10⁴ g/m³.
• Compare to options: D (2.3 × 10⁴ g/m³) approximates this value.

Why D is correct:

• Equals the given density after applying the conversion 1 kg = 1000 g, yielding ~22,000 g/m³.

Why the others are wrong:

• A: 2.3 × 10^{-3} g/cm³ = 2.3 kg/m³ (too low by factor of 10).
• B: 2.3 × 10³ g/m³ = 2.3 kg/m³ (too low by factor of 10).
• C: 2.3 × 10 g/cm³ = 23,000 kg/m³ (too high by factor of ~1000).

Final answer: D