Answer:
2.70 × 10³ kg/m³
Explanation:
ρ = 2.70 g/cm³
1. Convert grams to kilograms
In 1 kg there are 1000 g
[tex]\text{No. of kilograms} = \text{2.70 g} \times \dfrac{\text{1 g}}{\text{1000 g}} = 2.70\times 10^{-3}\text{ kg}[/tex]
2. Convert cubic centimetres to cubic metres
[tex]\text{No. of cubic metres} = \text{1 cm}^{3} \times \left ( \dfrac{\text{1 m}}{\text{100 cm}} \right )^{3} =1 \times 10^{-6} \text{ m}^{3}[/tex]
3. Calculate the density
[tex]\rho =\dfrac{\text{2.70 g }}{\text{1 cm}^{3}} = \dfrac{2.70 \times 10^{-3}\text{ kg}}{1 \times 10^{-6} \text{ m}^{3}} = \mathbf{2.70 \times 10^{3}} \textbf{ kg/m}^{\mathbf{3}}[/tex]
