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Consider the titration of a 27.5 −mL sample of 0.120 MRbOH with 0.105 M HCl. Determine...

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Chemistry

Consider the titration of a 27.5 −mL sample of 0.120 MRbOH with0.105 M HCl. Determine each of the following.

1) the initial pH

2) the volume of added acid required to reach the equivalencepoint

3) the pH at 5.9 mL of added acid

4) the pH at the equivalence point

5) the pH after adding 5.7 mL of acid beyond the equivalencepoint

Answer & Explanation Solved by verified expert
3.6 Ratings (442 Votes)
1 the question says titration of a strong base RbOH with a strong acid HCl As we We know that pH log H So we need to find H to get the pH of the solution But initially we only have OH in solution However because of the autoionization of water we know that HOH Kw 1 x 1014 given Initial OH 0125 M OH therefore H 0120M 1x1014 which gives us H 83333 x 1014 M also we know that pH logH So pH    See Answer
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