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Density of an object is g//cm^(3). Expre...

Density of an object is `g//cm^(3)`. Express it in `kg//m^(3)`.

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To convert the density of an object from grams per cubic centimeter (g/cm³) to kilograms per cubic meter (kg/m³), follow these steps: ### Step 1: Understand the conversion factors 1. **Convert grams to kilograms**: - 1 kg = 1000 g - Therefore, 1 g = \( \frac{1}{1000} \) kg = \( 10^{-3} \) kg. 2. **Convert cubic centimeters to cubic meters**: - 1 m = 100 cm - Therefore, \( 1 \, \text{cm} = 10^{-2} \, \text{m} \) - Thus, \( 1 \, \text{cm}^3 = (10^{-2} \, \text{m})^3 = 10^{-6} \, \text{m}^3 \). ### Step 2: Set up the conversion Using the conversion factors: - Density in g/cm³ can be expressed as: \[ \text{Density} = \frac{1 \, \text{g}}{1 \, \text{cm}^3} = \frac{10^{-3} \, \text{kg}}{10^{-6} \, \text{m}^3} \] ### Step 3: Simplify the expression Now simplify the expression: \[ \text{Density} = \frac{10^{-3} \, \text{kg}}{10^{-6} \, \text{m}^3} = 10^{-3 + 6} \, \text{kg/m}^3 = 10^{3} \, \text{kg/m}^3 \] ### Conclusion Thus, the density in kg/m³ is: \[ \text{Density} = 10^{3} \, \text{kg/m}^3 \]
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  17. Calculate number of atoms in 0.2 mole of oxygen atoms.

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  19. Calculate percentage of carbon in ethanol (C(2)H(5)OH).

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