In the unshaded portions of the following table, supply the calculated molarities of the indicated species in the solution mixtures. Assume the solutions are at 25 degrees Celsius. Note that in the rows labeled "Before Reaction," you must supply the appropriate concentrations after dilution occurs in the reaction mixture, but before any reaction takes place. C. pH of Buffer Solutions: 1. Preparation of Buffer Solution: Weigh 3.3 g of solid sodium acetate trihydrate, NaC2H3O2 * H2O, into a clean 150 or 250 mL beaker. Using graduated cylinders, add 46 mL of deionized water and 4.0 mL of 6.0 M HC2H3O2. Mix thoroughly. Measure 19.0 mL of this into each of two clean beakers. Label as "A" and "B". Measure the pH of this buffer solution using the remaining 10 mL. 2. Addition of Acid or Base to Buffer: a. To the buffer in beaker "A", add 1.0 mL of 3.0 M HCl. Mix thoroughly and read the pH of the resulting mixture. b. To the buffer in beaker "B,", add 1.0 mL of 3.0 M NAOH. Mix thoroughly and read the pH of the resulting mixture. 3. pH of Deionized water: Obtain 19 mL of deionized water in each of two beakers. Read the pH of the deionized water. (NOTE: It will not be a pH of 7.00.) 4. Addition of Acid or Base to Deionized Water: a. To one beaker of deionized water, add 1.0 mL of 3.0 M HCl. Mix thoroughly and read the pH of the resulting mixture. b. To the second beaker of deionized water, add 1.0 mL of 3.0 M NAOH. Mix thoroughly and read the pH of the resulting mixture.
I need C.2b, C.3, C.4a and C.4b-- PLEASE HELP!
At Equilibrium C.1 Buffer C.2a Buffer HCI Before Reaction At Equilibrium C.2b Buffer NaOH Before Reaction At Equilibrium At Equilibrium C.3 Water C.Aa Water HCl Before Reaction At Equilibrium C.4b Water NaOH Before Reaction At Equilibrium Calculated Molarities in Mixtures [HCl] [H+] [NaOH)
