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10 ~mL of 2( M ) ~NaOH solution is added to 200 ~mL of 0.5 (M) of NaOH solution. What is the final concentration ?

Options

  1. A0.57( M )
  2. B5.7( M )
  3. C11.4( M )
  4. D1.14( M )

Correct answer

A. 0.57( M )

Step-by-step solution

From molarity equation aligned & M ₁ V ₁+ M ₂ V ₂= MV _ (total) & 2 10 1000 +0.5 200 1000 = M 210 1000 & 120= M 210 & M = 120 210 =0.57 ~M aligned

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