A buffer contains 0.14 mol of propionic acid ( C2H;COOH) and 0.15 mol of sodium propionate ( C2H;COONA) in 1.20 L. Part A You may want to reference (Page) Section 17.2 while completing this problem. What is the pH of this buffer? Express the pH to two decimal places. pH = 4.92 Previous Answers v Correct This buffer is composed of 0.14 mol of propionic acid and 0.15 mol of its conjugate base, pr propionic acid is 4.9. The Henderson-Hasselbalch equation is used to determine the pH of th acid and base forms are dissolved in the same volume, you can calculate the pH directly using moles as follows: 0.15mol pH = pKa + log o.14mol Part B What is the pH of the buffer after the addition of 0.02 mol of NaOH? Express the pH to two decimal places. pH =

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Qualitative analysis of anions

Qualitative analyses are mainly used for the determination of anions and cations present in the given sample. This analysis is a type of analytical chemistry that is used to determine the elemental composition present in the inorganic compounds via different reagents.