Find the [OH−] of a 0.44 M ethylamine (C2H5NH2) solution. (The value of Kb for ethylamine (C2H5NH2) is 5.6×10−4.)
Express your answer to two significant figures and include the appropriate units.
Find the [OH−] of a 0.44 M ethylamine (C2H5NH2) solution. (The value of Kb for ethylamine (C2H5NH2)...
Find the [OH-] of a 0.28 M aniline (C6H5NH2) solution. (The value of Kb for aniline (C6H5NH2) is 3.9 x 10-10.) Express your answer to two significant figures and include the appropriate units. TE Å R O ? mo [OH-] = 1.04 • 10-5 Submit Previous Answers Request Answer X Incorrect; Try Again; 2 attempts remaining - Part B Find the pH of a 0.28 M aniline (C6H5NH2) solution. Express your answer using two decimal places. O AU O O...
Calculate the molar concentration of OH− ions in a 0.069 M solution of ethylamine (C2H5NH2 ; Kb=6.4×10−4
16)Calculate the molar concentration of OH− ions in a 0.074 M solution of ethylamine (C2H5NH2 ; Kb=6.4×10−4 ).
15. Calculate the molar concentration of OH− ions in a 0.074 M solution of ethylamine (C2H5NH2 ; Kb=6.4×10−4 ).
Calculate the molar concentration of OH-ions in a 0.084 M solution of ethylamine (C2H, NH2 ; Kb-6.4 × 10-4). Express your answer to two significant figures. OH] Previous Answers Request Answer
Find the pH of the solution obtained when 32 mL of 0.087 M ethylamine, C2H5NH2, is titrated to the equivalence point with 0.15 M HCl. The value of Kb for ethylamine is 4.7 x 10-4. (in 3 s.f.)
Calculate the pH of this solution molar concentration of OH− ions in a 0.085 M solution of ethylamine (C2H5NH2; Kb=6.4×10−4). [OH−] [OH−] = 7.1×10−3 M Calculate the pH of this solution. Express your answer to two decimal places.
2. A 35.00-ml sample of a 0.0870 M solution of ethylamine, C2H5NH2 (Kb = 5.6 x 10), is titrated with 0.150 M HCI. (a) What is the equivalence volume of HCI? (b) Calculate the pH of the solution: (1) prior to the start of the titration. (ii) after addition of 10.15 mL of the 0.150 M HCI. (iii) after addition of 14.50 mL of the 0.150 M HCI. (iv) after addition of 6.00 mL of the HCl beyond the equivalence...
Given Kb=6.4x10-4 for C2H5NH2 (ethylamine), what is the pH value for 0.1 M C2H5NH3Br?
a. The hydroxide ion concentration, [OH-], of an aqueous solution of 0.331 M ethylamine (a weak base with the formula C2H5NH2) , Kb = 4.3×10-4, is: [OH-] = ___________ b. The hydronium ion concentration of an aqueous solution of 0.331 M codeine (a weak base with the formula C18H21O3N) is ... [H3O+] = __________