Multiple choice

$\left [ CI^{2} \right ]$ in a mixture of 0.01 M HCI and M $BaCl_{2}$ solution in volume ratio 2:I is ?

  1. 0.01 m

  2. 0.0133 M

  3. 0.015 M

  4. 0.014 M
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B Correct answer
AI explanation

Assume the second solution is 0.01 M barium chloride, and let the total volume of the mixture be 3 units, with 2 units being hydrochloric acid and 1 unit being barium chloride. The moles of chloride ions from hydrochloric acid are 0.01 M multiplied by 2 units, yielding 0.02 units. The moles of chloride ions from barium chloride are 2 multiplied by 0.01 M multiplied by 1 unit, yielding 0.02 units. The final concentration of chloride ions is the total moles divided by the total volume, which is (0.02 plus 0.02) divided by 3, resulting in 0.0133 M.

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