Question

1 Review Constants Periodic Table You have to prepare a pH 5.07 buffer, and you have the following 0.10 M solutions available: HCOOH, HCOONa, CH, COOH, CH3COONa, HCN, and NaCN. Correct Part B How many milliliters of each solution would you use to make approximately a liter of the buffer? Express your answers using two significant figures. Enter your answers numerically separated by a comma. IVO AXO A O 2 ? Vch. cooh , Vch,cooNa = 333,667 Submit Previous Answers Request Answer X Incorrect; Try Again; One attempt remaining Term 1: Review your calculations and make sure you round to 2 significant figures in the last step.

Answer 1

The answer is attach below

ANSWER! Given better pH = 5.07 pKa value = 4.7.5 (CHE COOH.) Molarity of colycoon = 0.10 17 - 4 molarity of Che cogna = 0-10m dlsing Henderson- Hasselbolch e geraten pH = pka + log LChe cos he] [Che coor] 5:07 = 4.75 + log r mole of cuzcogno Volume of butter male of Chocoon Volume of buffer Let volume of cu codna = V₂ 4 also volume of Chz con = V₂ Total volume of buffees a Vitez OZOM XV1 5:07 = 4.75 + Vitet LOLOM XU2) . La Mile 5.07-4.75 = 0.32 +0.32 - 2.0592361-31 X V) V = 10 + V : 2.089 296134 M = 2.099296231xV2 --0 while our purpose is lL Beelter means [V; + V2 = 14 - @

Putting value of equation in equation ③ 2.0 8129 6131 V2 +VS 1L 3.089296131 V2:12 , =) Vz Ib 3 0.32 36 9833L 302129612L 7 OR 12 = 323.69833 mL OR TV2 = 324mL) Hence volume of acetic acid cuşoon ♡) = 324mL & V = Locuri uz : Vs = {000 - 324)/2 = 676 ML Vs = 676 mil Hence volume of Nach coo (V2) = 876 mL to me! - This I Vers cook , Van Coona = 324m2, 676mL)