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Consider the titration of 70 ml of 0.25 M hydrazine, N2H4 titrated with 0.35 M HBr....

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Chemistry

Consider the titration of 70 mlof 0.25 M hydrazine, N2H4 titrated with 0.35 M HBr. (Kb= 1.3 x10-6).

A. Write the reaction equation for above reaction.

B. Calculate the volume of HBr required to reach the endpoint.

C. Caculate the pH before addition of any acid.

D. Calculate pH after addition of 20 mL of HBrI.

E. Caculate pH after addition of 25 mL of HBr.

F. Caculate pH at the end point.

G. Calculate pH after addition of 59 mL of HBr.

Answer & Explanation Solved by verified expert
4.4 Ratings (850 Votes)
A Equation N2H4 HBr N2H5 Br B moles of N2H4 025 M x 70 ml 175 mmol Volume of HBr required to reach end point 175 mmol035 M 50 ml C pH before    See Answer
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