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Chemistry · Some Basic Concepts of Chemistry

हिन्दी

What is the concentration of sugar (\( \text{C}_{12}\text{H}_{22}\text{O}_{11} \)) in \( \text{mol L}^{-1} \) if its \( 20\text{ g} \) are dissolved in enough water to make a final volume up to \( 2\text{ L} \)?

  1. A
    0.0146 mol L⁻¹
  2. B
    0.0584 mol L⁻¹
  3. C
    0.1000 mol L⁻¹
  4. D
    0.0292 mol L⁻¹
View Answer & Solution

Correct answer · Option D

0.0292 mol L⁻¹

Explanation

Molar mass of sugar = \( 342\text{ g mol}^{-1} \). Moles = \( \frac{20}{342} = 0.0585\text{ mol} \). Molarity = \( \frac{0.0585}{2} = 0.0292\text{ mol L}^{-1} \).
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