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Imagine that you are in chemistry lab and need to make 1.00 Lof a solution with...

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Chemistry

Imagine that you are in chemistry lab and need to make 1.00 Lofa solution with a pH of 2.80.

You have in front of you

100 mL of 7.00×10−2M HCl,

100 mL of 5.00×10−2M NaOH, and

plenty of distilled water.

You start to add HCl to a beaker of water when someone asks youa question. When you return to your dilution, you accidentally grabthe wrong cylinder and add some NaOH. Once you realize your error,you assess the situation. You have 81.0 mL of HCland 90.0 mL ofNaOH left in their original containers.

Assuming the final solution will be diluted to 1.00 L , how muchmore HCl should you add to achieve the desired pH?

Answer & Explanation Solved by verified expert
4.3 Ratings (668 Votes)
we know that pH log H so log H 28 H 15849 x 103 M we know that moles molarity x volume L so moles of H 15849 x 103 x 1 moles of H 15849 x 103 volume of HCl used 100 81 19 ml volume of    See Answer
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