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NH+4 and NH3 are and acid=base conjugate pair. How many moles of NH4Cl must be added to 2.0 L of a 0.10M NH3 to form a buffer with a pH= 9.00? NH3 (aq) + H2O(l) ⇌NH+4(aq) + OH−(aq)    Kb =1.8x 10−5  =[NH+4][OH−]/[NH3]       a)  18. mol   b)  36.0 mol   c)  2.7 mol   d)  0.36 mol

NH+4 and NH3 are and acid=base conjugate pair. How many moles of NH4Cl must be added to 2.0 L of a 0.10M NH3 to form a buffer with a pH= 9.00? NH3 (aq) + H2O(l) ⇌NH+4(aq) + OH−(aq)    Kb =1.8x 10−5  =[NH+4][OH−]/[NH3]       a)  18. mol   b)  36.0 mol   c)  2.7 mol   d)  0.36 mol

Chemistry: Principles and Practice
Chemistry: Principles and Practice
3rd Edition
ISBN:9780534420123
Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Chapter16: Reactions Between Acids And Bases
Section: Chapter Questions
Problem 16.28QE
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NH+4 and NH3 are and acid=base conjugate pair. How many moles of NH4Cl must be added to 2.0 L of a 0.10M NH3 to form a buffer with a pH= 9.00?

NH3 (aq) + H2O(l) ⇌NH+4(aq) + OH−(aq)    Kb =1.8x 10−5  =[NH+4][OH−]/[NH3]

 

 

 

a) 

18. mol
 

b) 

36.0 mol
 

c) 

2.7 mol
 

d) 

0.36 mol
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