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The molarity of a solution obtained by mixing 750 mL of 0 . 5 ( M ) HCl with 250 mL of 2 ( M ) HCl will be

Options

  1. A1 . 75   M
  2. B0 . 975   M
  3. C0 . 875   M
  4. D1 . 00   M

Correct answer

C. 0 . 875   M

Step-by-step solution

M = M 1 V 1 + M 2 V 2 V 1 + V 2 = 7 5 0 × 0 . 5 + 2 5 0 × 2 1 0 0 0   = 3 7 5 + 5 0 0 1 0 0 0 = 0 . 8 7 5  M

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