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Concentrated aqueous perchloric acid is 70.5 wt% HClO4 and has a concentration of 11.7 M. Calculate the volume of concentrated perchloric acid that should be diluted to 1.90 L to form a 5.00 M HClO4 solution.

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Answer:

0.812 L

Explanation:

As this is a dilution process problem, we can solve it by using the C₁V₁ = C₂V₂ formula, where in this case:

  • C₁ = 11.7 M
  • V₁ = ?
  • C₂ = 5.00 M
  • V₂ = 1.90 L

We input the data:

  • 11.7 M * V₁ = 5.00 M * 1.90 L

And solve for V₁:

  • V₁ = 0.812 L

This means that 0.812 L of concentrated perchloric acid should be diluted to a final volume of 1.90 L.

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