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Determine the pH during the titration of 24.8 mL of 0.475 M nitrous acid (Ka = 4.5×10-4)...

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Chemistry

Determine the pH during the titration of 24.8mL of 0.475 M nitrous acid(Ka = 4.5×10-4) by0.361 M NaOH at the followingpoints.

(a) Before the addition of any NaOH__________

(b) After the addition of 8.20 mL ofNaOH __________

(c) At the half-equivalence point (the titration midpoint)________

(d) At the equivalence point __________

(e) After the addition of 48.9 mL ofNaOH __________

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