To calculate pH of starting NaNO2 solution and after each addition of HCl:
a) NaNO2 dissociates into ions: Na+ + NO2- and reacts with water:
Step 1: ICE Chart
The Kb expression for NO2- is:
Knowing that NaNO2 is the salt of a strong base and weak acid calculate :
a: pH of 0.100 M NaNO2 solution. Ka of HNO2 = 4.6 x 10-4.
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