Consider a buffer made from 255 mL 0.10 M HC,H,O, and 125 mL 0.10 NaC,H,O,. Ka for HC,H,O, is 1.8 x 10°. 3 2 2 Choose the true statement. A) Adding 25 mg NaOH (s) will reduce the pH. B) Adding 25 mL water will increase the pH. C) Adding 25 mL 0.0050 M HCI will increase the pH. D) Adding 25 mL 0.0050 M HF will reduce the pH. E) Adding 25 mg NaCI (s) will| increase the pH.

Please don't provide hand written solution.....

For each of the buffer systems below, determine the concentration of the acid and base components in the buffer: 1) An acetate buffer with a pH of 5.15 and a concentration of 3.5M. The (HC2H302] = Type your answer here M and the [NAC2H302] = Type your answer here M 2) A Carbonate buffer with a pH of 9.85 and a concentration of 0.50M. The [NAHCO3] = Type your answer here M and the Na2CO3] = Type your answer here M 3) A Phosphate buffer of pH 2.5 and a concentration of 1.0M. The [H3PO4] = Type your answer here Mand the [KH2PO4) Type your answer here

3. What is the pH of a buffer produced by mixing 225 mL of 0.305 M HCOOH with 175 mL of 0.141 M KCOOH? Be sure to first find the new concentration of each compound in the mixed solution (M₁V₁ = M₂V₂ remember V₁ = total volume), then apply equilibrium.