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NEETChemistrySome Basic Concepts of Chemistry

What is the mole fraction of NaOH in a solution where 4 g of NaOH dissolves in 36 g of H 2 O, and what is the molarity of the solution? (Assuming specific gravity of the solution is 1 g mL –1 ).

Options

  1. AMole fraction of NaOH = 0.01, Molarity = 2.5 M
  2. BMole fraction of NaOH = 0.02, Molarity = 5.0 M
  3. CMole fraction of NaOH = 0.03, Molarity = 2.5 M
  4. DMole fraction of NaOH = 0.04, Molarity = 5.0 M

Correct answer

D. Mole fraction of NaOH = 0.04, Molarity = 5.0 M

Step-by-step solution

Correct Option is : (D) Mole fraction of NaOH = 0.04, Molarity = 5.0 M

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