When 10 drops of  0.1 M Co2+ is acidified using 20 drops 6.0 M CH3COOH and a pinch of solid NaNO2 is added then placed in a warm water bath, an orange solution is observed. Write the net ionic equation associated with the formation of the orange solution and indentify which species is responsible for this color change.

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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.