Asked by Anna

Consider 25.0 ml of .300 MHNO2 that is titrated with .500 M Find ph at eq pt
Answered by DrBob222
The pH at the equivalence point is determined by the hydrolysis of the salt. What's the salt? 0.500 M what?
Set up an equation for the hydrolysis, an ICE chart, Kb for NO2^- and solve for OH then convert to pH. Show your work if you get stuck.
Answered by Anna
okay so i think i did this question correct but i get a little confused with equivalence point. If there is 25 ml of a .300M solution of HNO2...when i set up my ICF table, does that mean there is 7.5 mmol of HNO2 and OH- in the equation HN02 + 0H --> NO2 + H20 since it is at the equivalence pt? Even the the Molarity of NaOH is .500M?
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