A 50.0-mL sample of 0.10 MHNO 2 (Ka 4.0 x 10-4) is titrated with 0.18 M NaOH. The pH after 11.1 mL of NaOH have been added is Oa. 10.43 Ob. 7.00 O c. 6.57 Od.3.5 Oe. 2.22 A Moving to another question will save this response. Question 3 of

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Q: concentration

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Acid Base Titration

An acid-base titration is the method of quantitative analysis for determining the concentration of an acid and base by exactly neutralizing it with a standard solution of base or acid having known concentration.