Answer Happy

each solution 1-3 was created before class and there pH was measured.
PEA Follow the instructor's directions for proper disposal of Part 1. Amphoteric species Amphoteric species are able to act as both an acid and a base. For solutions 1-3, each compound breaks into ions, one of which can donate and accept a hydrogen ion. Soln #1 Soln #2 Soln #3 0.10 M NaHSO 0.10 M NGHCOS 0.10 M Na HPO Before making any measurements, calibrate your pH meter using the standard solutions provided. Be sure to transfer the standard solution into a clean dry flask to carry out the calibration. Procedure 1. Pour -20mL of solution into a small beaker. 2. Measure the pH of each solution. Analysis 1. Identify the major species.present. 2. Based on the measured pH, identify the solution as a strong/weak acid/base. 3. Use equilibrium constants in the table below to identify/calculate the K, and K. of each amphoteric species. Based on the values, are the measured pH values consistent with the theoretical values of K, and K,? Substance K₂₁ Strong acid H₂SO 4.3 x 10 H₂CO H₂PO 7.5 x 10¹ 750ln #1 PH = 1.56 Soln #2 |PH=9.57 Soln #3 PH=8.38 46 Kaz 0.012 5.6 x 10 6.2 x 10 Kas N/A N/A 4.2x 10-13