What volume of 1.900-M NaOH should be added to 450. mL of 1.110-M solution of HCN (pKa = 9.40) to prepare a pH = 10.25 buffer? (use acid base table)
What volume of 1.900-M NaOH should be added to 450. mL of 1.110-M solution of HCN...
What volume (in mL) of 0.150 M NaOH must be added to 100.0 mL of a 0.0500 F solution of fumaric acid (trans-butenedioic acid) to make a buffer of pH 4.50? Ka1 of Fumeric acid = 8.85x10^-4 pKa = 3.05 Ka2 of Fumeric acid = 3.21x10-5
A volume of 500.0 mL of 0.150 M NaOH is added to 615 mL of 0.250 M weak acid (Kg = 4.65 x 10-'). What is the pH of the resulting buffer? HA(aq) + OH(aq) — H,O(l) + A (aq) pH If a buffer solution is 0.230 M in a weak acid (K, = 9.0 x 10-) and 0.460 M in its conjugate base, what is the pH? pH =
6. How many mL of 0.2 M sodium acetate should be added to 200 mL of 0.2 M acetic acid to make a buffer of pH 5.5? (refer to Table 2-2 on page 60 for pKa values). What is the molarity of the resulting buffer with respect to acetate (acetate + acetic acid)? 7. How many mL of 0.2 M HCl should be added to 50 mL of 0.2 M Tris base (Trishydroxymethyl aminomethane) to make a buffer of pH...
A volume of 500.0 mL of 0.160 M NaOH is added to 575 mL of 0.200 M weak acid (K, the resulting buffer? 5.93 x 10). What is the pH of HA (aq) +OH (aq)HO) + A (aq) pH = QuestronT orA Calculate the pH of the resulting solution if 35.0 mL of 0.350 M HCl(aq) is added to 45.0 mL of 0.350 M NaOH(aq). pH Calculate the pH of the resulting solution if 35.0 mL of 0.350 M HCI(aq)...
How many mL of 3 M NaOH solution should be added to 100 mL of 0.200 M acetic acid to make acetate buffer, pH 5.00
Calculate the volume (in mL) of 0.170 M NaOH that must be added to 273 mL of 0.0433 M 3-(N-Morpholino)propanesulfonic acid (MOPS) to give the solution a pH of 7.55. The pKa of MOPS = 7.18.
Calculate the volume (in mL) of 0.170 M NaOH that must be added to 285 mL of 0.0453 M 3-(N-Morpholino)propanesulfonic acid (MOPS) to give the solution a pH of 7.55. The pKa of MOPS = 7.18.
How much volume of a 0.102 M NaOH solution must be added to 25.00 ml of a 0.075 M solution of benzene-1,2,3-tricarboxylic acid to obtain a pH equal to 4.80? pKa values: pKa1 = 2.86, pka2 = 4.30 and pka3 = 6.28.
Construct a rough plot of pH versus volume of added base for the titration of 50 mL of 0.045 M HCN with 0.075 M NaOH.(a) What is the pH before any NaOH is added? (b) What volume of base, in milliliters, is required to reach the equivalence point? (c) What is the pH at the equivalence point? (d) What indicator would be most suitable to determine the endpoint?bromocresol green Alizarin yellow GG Bromthymol blue bromcresol purple
Calculate the volume, in milliliters, of 0.170 M NaOH that must be added to 383 mL 0.0543 M 3-(N-Morpholino) propanesulfonic acid (MOPS) to give the solution a pH of 7.55. The pKa of MOPS is 7.18. NaOH volume = 122.33 mL Incorrect