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A solution made by dissolving 40 g NaOH in 1000 g of H ₂ O is

Options

  1. A1 molar
  2. B1 normal
  3. C1 molal
  4. DNone of these

Correct answer

C. 1 molal

Step-by-step solution

Number of moles of NaOH (n)= weight in g molar mass = 40 40 =1 As molality of a solution is defined as the number of moles of the solute dissolved in 1000 ~g (1 ~kg ) of the solvent, thus the given solution of NaOH is ' 1 molal' solution.

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