8. What is the pH of a 0.25 Maqueous solution of methylamine hydrochloride, CH,NH,CI? K, for...
What is the pH of a 0.14 M solution of methylammonium chloride, CH NH, CI? What is the concentration of methylamine in the solution? Ks (methylamine) - 4.4 x 10-4 pH- Concentration =
A buffered solution containing dissolved aniline, CH,NH, and aniline hydrochloride, CH NH, CI, has a pH of 5.48. A. Determine the concentration of CH NH in the solution if the concentration of C, H,NH, is 0.320 M. The pKb of aniline is 9.13. [C,H, NH] = B. Calculate the change in pH of the solution, ApH, if 0.390 g NaOH is added to the buffer for a final volume of 1.65 L. Assume that any contribution of NaOH to the...
A buffered solution containing dissolved aniline, CH NH, and aniline hydrochloride, CH-NH, CI, has a pH of 5.49. A. Determine the concentration of CGH NH; in the solution if the concentration of CoH_NH, is 0.290 M. The pKy of aniline is 9.13. [C,H,NH] = M B. Calculate the change in pH of the solution, ApH, if 0.358 g NaOH is added to the buffer for a final volume of 1.55 L. Assume that any contribution of NaOH to the volume...
A buffered solution containing dissolved aniline, CH, NH,, and aniline hydrochloride, CH NH, CI, has a pH of 5.61. A. Determine the concentration of C H NH in the solution if the concentration of C, H, NH, is 0.320 M. The pKb of aniline is 9.13. [CH, NH] = B. Calculate the change in pH of the solution, ApH, if 0.356 g NaOH is added to the buffer for a final volume of 1.65 L. Assume that any contribution of...
Calculate the pH and concentrations of CH NH, and CH NH; in a 0.0293 M methylamine (CH, NH,) solution. The Kb of CH3NH, is 4.47 x 10-4. pH = [CH, NH] = [CH, NH}=
A chemistry graduate student is given 450. mL of a 0,60 M methylamine (CH NH, solution, Methylamine is a weak base with of CH NH,Br should the student dissolve in the CH, NH, solution to turn it into a buffer with pH - 11.09 4.4 x 10 What mass You may assume that the volume of the solution doesn't change when the CH, NH Br is dissolved in it. Be sure your answer has a unit symbol, and round it...
A buffered solution containing dissolved aniline, C H NH2, and aniline hydrochloride, CH-NH, CI, has a pH of 5.30. A. Determine the concentration of CGH NH4 in the solution if the concentration of C, H,NH, is 0.200 M. The pKy of aniline is 9.13. [CH NH}] M B. Calculate the change in pH of the solution, ApH, if 0.395 g NaOH is added to the buffer for a final volume of 1.00 L. Assume that any contribution of NaOH to...
What is the pH of the resulting solution if 95 mL of 0.514 M methylamine, CH3NH2, is added to 115 mL of 0.85 M HCI? Assume that the volumes of the solutions are additive. K = 2.70 x 10 for CH NH. CH:NH, (aq) + H(aq) = CH NH3(aq) | CHINH, H CHỌNH What is the pH of a solution prepared by mixing 75 ml of 0.38 M acetic acid and 50 mL of 0.58 M sodium acetate are mixed....
1.Calculate the pH at the following points in the titration of 50.0 mL of 0.100 methylamine (CH,NH), Kb = 4.4 x 104, with a 0.200 M HCl solution before any acid is added, after adding 0.0mL, 15.0 mL, 25.0 mL, 35.0 mL and 50 mL of HCl. Plot (using graph paper) the titraticn curve from your results (label all relevant points).
1.Calculate the pH at the following points in the titration of 50.0 mL of 0.100 methylamine (CH,NH), Kb =...
10) The pH of a solution prepared by dissolving 0.550 mol of solid methylamine hydrochloride (CH3NH3Cl) in 1.00 L of 1.35 M methylamine (CH3NH2) is Kb for methylamine is 4.40 x 10-4. (Assume the final volume is 1.00 L.) The A) 11.03 B) 2.97 C) 3.75 D) 10.64 E) 10.25 11) A 25.0 mL sample of 0.723 M HCIO4 is titrated with a 0.27 M KOH solution. The H30+ concentration after the addition of 80.0 ml of KOH is M....