A 400-mL buffer solution is 0.350 M in ammonia (NH3) and 0.350 M in ammonium chloride (NH4Cl). Kb(NH3)=1.76×10−5 Part A: What is the initial pH of this solution? Express your answer using two decimal places. pH = 9.25 Part B: What is the pH after adding 125.0 mL of 0.100 M HBr to the initial buffer solution in Part A? Express your answer using two decimal places. pH = (not 10.26) Part C: What is the pH after adding 150.0 mL of 0.100 M LiOH to the initial buffer solution in Part A? Express your answer using two decimal places. pH = (not 8.33) --------------------------- Give the formula for tin(IV) hydroxide
A 400-mL buffer solution is 0.350 M in ammonia (NH3) and 0.350 M in ammonium chloride (NH4Cl). Kb(NH3)=1.76×10−5 Part A: What is the initial pH of this solution? Express your answer using two decimal places. pH = 9.25 Part B: What is the pH after adding 125.0 mL of 0.100 M HBr to the initial buffer solution in Part A? Express your answer using two decimal places. pH = (not 10.26) Part C: What is the pH after adding 150.0 mL of 0.100 M LiOH to the initial buffer solution in Part A? Express your answer using two decimal places. pH = (not 8.33) --------------------------- Give the formula for tin(IV) hydroxide
Chemistry: The Molecular Science
5th Edition
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:John W. Moore, Conrad L. Stanitski
Chapter15: Additional Aqueous Equilibria
Section: Chapter Questions
Problem 124QRT
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A 400-mL buffer solution is 0.350 M in ammonia (NH3) and 0.350 M in ammonium chloride (NH4Cl).
Kb(NH3)=1.76×10−5
Part A:
What is the initial pH of this solution? Express your answer using two decimal places.
pH = 9.25
Part B:
What is the pH after adding 125.0 mL of 0.100 M HBr to the initial buffer solution in Part A?
Express your answer using two decimal places.
pH = (not 10.26)
Part C:
What is the pH after adding 150.0 mL of 0.100 M LiOH to the initial buffer solution in Part A?
Express your answer using two decimal places.
pH = (not 8.33)
---------------------------
Give the formula for tin(IV) hydroxide.
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