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9. (21) Consider the titration of 25.0mL 0.210M C2H5NH2 with 0.105M HCI a. Determine the Equivalence...
9. (21) Consider the titration of 25.0mL 0.210M CHaNH with 0.105M HCL Determine the equivalence Point volume. Volume - b. Determine the pH when 10.0mL HCI have been added. OIL pH- c. Determine the pH at the equivalence point. pH = d. Determine the pH when 75.0ml HCI have been added. pH = 10. (12) Describe the preparation method you would use to prepare 2.5 L of a pH 5.00 buffer from a 0.100M HNs solution and NaNo solid.
9 Consider a titration in which 0.03 M NaOH is added to 1 drop of 0.12 M HCl. Sketch the pH curve. A sketch is a rough picture of the general shape of the curve with the requested points and axes correctly labeled. On your curve, show: (a) The volume of 0.03 M NaOH needed to reach the equivalence point. (b) The pH at the equivalence point. (c) The pH at the beginning of the titration before any 0.03 M...
Sorry, ignore my writing, it’s wrong! 9. (25pts) Consider the titration of 25 mL of 0.150 NHs with 0.250 M HCL. Calculate the pH of the solution a) before any acid has been added, b) any volume before the equivalence point, c) at ½ the equivalence point d) at the equivalence point, and e any volume after the equivalence point.
Consider the titration of 40.0 mL of 0.0600 M C2H5NH2 (a weak base; Kb = 0.000640) with 0.100 M HCl. Calculate the pH after the following volumes of titrant have been added: (a) 0.0 mL pH = (b) 6.0 mL pH = (c) 12.0 mL pH = (d) 18.0 mL pH = (e) 24.0 mL pH = (f) 26.4 mL pH =
Consider a titration in which 0.03 M NAOH is added to 1 drop of 0.12 M HCl. Sketch the pH curve. A sketch is a rough picture of the general shape of the curve with the requested points and axes cor rectly labeled On your curve, show: (a) The volume of 0.03 M NAOH needed to reach the equivalence point. (b) The pH at the equivalence point. (c) The pH at the beginning of the titration before any 0.03 M...
Consider the titration of 30.00 mL of 0.200 M AsO.. with 0.150 M HCI. K for H AsO4 = 3 x 102 K., for H:AsO. = 6 x 10 K, for H:AsO4 = 1.1 x 10-7 a) How many milliliters of HCl are needed to reach the 1, 2nd, and 3rd equivalence points in this titration? b) What is the pH of the 0.180 M AsO solution before any HCl is added. c) What conjugate pair is present at the...
Determine the pH at the equivalence (stoichiometric) point in the titration of 33 mL of 0.22 M C2H5NH2(aq) with 0.16 M HCl(aq). The Kb of ethylamine is 6.5 x 10-4
Consider the titration of a 23.9 −mL sample of 0.125 MRbOH with 0.110 M HCl. Determine each of the following. a. the initial pH b. the volume of added acid required to reach the equivalence point c.the pH at 4.1 mL of added acid d.the pH at the equivalence point e.the pH after adding 5.1 mL of acid beyond the equivalence point
consider the titration of a 25.7 mL sample of 0.115 M RbOH with 0.110 M HCl. Determine each of the following.a) the initial pHb) the volume of added acid required to reach the equivalence pointc) the pH at 4.4 mL of added acidd) the pH at the equivalence pointe) the pH after adding 5.2 mL of acid beyond the equivalence point
Consider the titration of a 25.0 mL sample of 0.100 M HCl with 0.200 M KOH. The volume of equivalence is 12.50 mL. (Remember to report pH values with two places past the decimal point.) A)What is the pH of the sample before any KOH is added? B)What is the pH after 9.00 mL of KOH have been added? C)What is the pH at the equivalence volume? D)What is the pH after the addition of 14.0 mL of KOH?