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11 Nov 2019
1. A student following the procedure in this lab prepared 4 solutions by adding 12.25, 23.00, 25.50, and 34.50 mL of a 8.25 x 102 M NaOH solution to 50.00 mL of a 0.152 M solution of weak acid. The solutions were labeled 1, 2, 3, and 4 respectively. Each of the solutions was diluted to a total volume of 250 mL with DI water. The pH readings of these solutions were: (1) 6.64 (2) 6.98 (3) 7.04 (4) 7.23 PRE-LAB DATA SHEET 1234 Initial number of moles Number of moles at equilibrium An Equilibrium concentrations, mol/L HAnp An K, K, Which of the weak acids in Table 1 do you think your unknown acid is?
1. A student following the procedure in this lab prepared 4 solutions by adding 12.25, 23.00, 25.50, and 34.50 mL of a 8.25 x 102 M NaOH solution to 50.00 mL of a 0.152 M solution of weak acid. The solutions were labeled 1, 2, 3, and 4 respectively. Each of the solutions was diluted to a total volume of 250 mL with DI water. The pH readings of these solutions were: (1) 6.64 (2) 6.98 (3) 7.04 (4) 7.23 PRE-LAB DATA SHEET 1234 Initial number of moles Number of moles at equilibrium An Equilibrium concentrations, mol/L HAnp An K, K, Which of the weak acids in Table 1 do you think your unknown acid is?
Trinidad TremblayLv2
16 Sep 2019