Question

In: Chemistry

Which of the following would result as a buffer if any when 1 L of each...

Which of the following would result as a buffer if any when 1 L of each is mixed together:

a) 0.1 M KOH and 0.2 NH4Cl

b) 0.2 M HNO3 and 0.6 M NaNO3

Please Explain!

Solutions

Expert Solution

answer : a) 0.1 M KOH and 0.2 NH4Cl

explain :

a )   NH4Cl + KOH -------------------> NH4OH

       0.2               0.1                                0   --------------> initial

       0.1                0.0                              0.1 ---------------> after reaction

after reaction NH4OH + NH4Cl remains . so it is buffer

b )    HNO3 is the strong acid and NaNO3 is the salt of strong acid and strong base . so it cannot form buffer

queen_honey_blossom answered 25 minutes ago
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