(5 pts) What is the pH of a solution of 0.445 M aminobenzene hydrochloride? 4. K,...
Calculate the pH of a 0.445 M NH, solution. NH, has a Kb = 1.8 x 10-5. pH = The K, of a weak monoprotic acid is 1.59 x 10-5. What is the pH of a 0.0808 M solution of this acid? pH =
A buffer solution is made that is 0.445 M in H2S and 0.445 M in KHS. Kal If for H2S is 1.00 x 10-7, what is the pH of the buffer solution? pH = Write the net ionic equation for the reaction that occurs when 0.112 mol HNO3 is added to 1.00 L of the buffer solution. (Use the lowest possible coefficients. Omit states of matter. Use H30+ instead of H+) + +
A buffer solution is made that is 0.445 M in H2S and 0.445 M in KHS. Kal If for H2S is 1.00 x 10-7, what is the pH of the buffer solution? pH = Write the net ionic equation for the reaction that occurs when 0.112 mol HNO3 is added to 1.00 L of the buffer solution. (Use the lowest possible coefficients. Omit states of matter. Use H30+ instead of H+) + +
Calculate the pH of a 0.0132 M solution of arginine hydrochloride (arginine HCI, H,Arg). Arginine has pK, values of 1.823 (pKa), 8.991 (pK2), and 12.01 (pK). 11.14 pH= Calculate the concentration of each species of arginine in the solution. H,Arg2+16.31 x10-12 М [H,Arg) = М 1.88 м HArg] = м [Arg] 0.26
Question 48 5 pts What is the pH of a 2.2 M solution of HOBr (K, - 2.0 x 10°)? Report your answer to the nearest whole number.
8. What is the pH of a 0.25 Maqueous solution of methylamine hydrochloride, CH,NH,CI? K, for methylamine CH3NH2 is 4.4 x 104
Please regard as one question. Thanks
5. Calculate the pH at which thioridazine hydrochloride (pk, -9.5, M, 407 g mot') wi 0.407% w/v solution. The solubility of the unionised species is 1.5 x 1o-M. [5.68] 6. In reference to question 5 above, how could we increase the solubility of thioridazine in solution at pH 5.7 without altering the pH of the solution? ill precipitate from as1s0
A buffer solution contains 0.202 M C6H5NH3Br and 0.445 M C6H5NH2 (aniline). Determine the pH change when 0.114 mol HClO4 is added to 1.00 L of the buffer. pH after addition − pH before addition = pH change =
Determine the pH of a 2.0 x10^-4 M solution of aniline hydrochloride (C6H5NH3Cl). Kb aniline (C6H5NH2) = 3.98 x10^-10
A buffered solution containing dissolved aniline, CH-NH2, and aniline hydrochloride, CH3NH, CI, has a pH of 5.74. A. Determine the concentration of CH NH4 in the solution if the concentration of CH_NH, is 0.290 M. The pK) of aniline is 9.13. [CH, NH] : .006 M Incorrect B. Calculate the change in pH of the solution, ApH, if 0.363 g NaOH is added to the buffer for a final volume of 1.70 L. Assume that any contribution of NaOH to...