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Chemistry · Some Basic Concepts of Chemistry

हिन्दी

Calculate the molarity or density conversion: If a solution has a density of \( 1.25 \text{ g cm}^{-3} \), what is its equivalent value in \( \text{kg m}^{-3} \)?

  1. A
    \( 1.25 \times 10^2 \text{ kg m}^{-3} \)
  2. B
    \( 1.25 \times 10^{-3} \text{ kg m}^{-3} \)
  3. C
    \( 1.25 \times 10^4 \text{ kg m}^{-3} \)
  4. D
    \( 1.25 \times 10^3 \text{ kg m}^{-3} \)
View Answer & Solution

Correct answer · Option D

\( 1.25 \times 10^3 \text{ kg m}^{-3} \)

Explanation

\( 1 \text{ g cm}^{-3} = \frac{10^{-3} \text{ kg}}{(10^{-2} \text{ m})^3} = 10^3 \text{ kg m}^{-3} \). Hence \( 1.25 \text{ g cm}^{-3} = 1.25 \times 10^3 \text{ kg m}^{-3} \).
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