Suppose 500 mL of 0.200 M nitrous acid , which has a pKa of 3.347, solution...
Suppose 500 mL of 0.200 M nitrous acid , which has a pKa of 3.347, solution is titrated with 75.0 mL of a 1.00 M NaOH. What is the final pH? The error interval is +/- 0.2 pH units.
Homework Answers
its a buffer solution
Millimnoles of Nitrous acid taken= 100
Millimoles of NaOH = 75
Millimiles of Salt formed = 100-75 = 75
Millimoles of Nitrous acid left unreacted = 25
pH = pKa + log(salt/acid) = 3.347 + log(75/25)
= 3.347 + 0.4771 =3.8241
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