Consider the titration of a 23 0 mL sample of 0 170 M CH3NH2with 0 155...

Consider the titration of a 23.0 âˆ’mL sample of 0.170 M CH3NH2 with 0.155 M HBr....

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Chemistry

Consider the titration of a 23.0 âˆ’mL sample of 0.170 M CH3NH2with 0.155 M HBr. Determine each of the following.
C) the pH at 6.0 mL of added acid. Express your answer using two decimalplaces.
D) the pH at one-half of theequivalence point. Expressyour answer using two decimal places.
E) the pH at the equivalencepoint .Express your answerusing two decimal places.
F) the pH after adding 5.0 mL of acid beyond theequivalence point. Expressyour answer using two decimal places.

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Answer We are given 230 mL of 0170 M CH3NH2 HBr 0155 M C the pH at 60 mL of added acid moles of CH3NH2 0170 M 0023 L 000391 mole moles of HBr 0155 M 0006 L 000093 moles CH3NH2 HBr CH3NH3 Br 000391 000093 000093 New moles of CH3NH2 000391 000093 000298 moles Moles of CH3NH3 000093 moles New molarity calculation so total volume 23 6 29 mL CH3NH2 000298 moles 0029 See Answer

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