Consider the titration of a 23 0 mL sample of 0 180 M CH3NH2with 0 145...

Consider the titration of a 23.0 âˆ’mL sample of 0.180 M CH3NH2 with 0.145 M HBr....

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Chemistry

Consider the titration of a 23.0 âˆ’mL sample of 0.180 M CH3NH2with 0.145 M HBr. Determine each of the following.
Part A
the initial pH
Express your answer using two decimal places.
pH = 11.95
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Correct
Part B
the volume of added acid required to reach the equivalencepoint
V = 28.6 Â Â mLÂ Â
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Correct
Part C
the pH at 5.0 mL of added acid
Express your answer using two decimal places.
pH =
Part D
the pH at one-half of the equivalence point
Express your answer using two decimal places.
pH =
Part E
the pH at the equivalence point
Express your answer using two decimal places.
pH =
Part F
the pH after adding 5.0 mL of acid beyond the equivalencepoint
Express your answer using two decimal places.

Answer & Explanation Solved by verified expert

3.8 Ratings (411 Votes)

millimoles of base 23 x 018 414 c millimoles of acid added 50 x 0145 0725 414 0725 3415 millimoles base left 0725 millimoles salt formed salt See Answer

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