HA + H2O = H3O^+A^-4. This problem has been solved! Ask Question + 100. Favorite Answer. which of these reactions (enter only the reaction number 1 to 7) best describes how adding OH- converts the weak acid to conjugate base and forms a buffer? water--> A- + H2O --><-- HA + OH-Kb= ((HA (OH-) ) / (A-) larger Kb the more the base wants to accept the proton; ex- NH3 + H2O --><-- NH4 + OH-Kb= (NH4+) * (OH-) / (NH3) ex- What is pH of a 15 M solution of NH3, kb= 1.8 * 1 0 ^-5 NH3 NH4+ OH- I 15M 0 0 C -x +x +x E 15-x x x: Kb= 1.8 * 1 0 ^-5= x^2/ 15-x x=.164 (OH)= 0.016M; p (OH)= -log (OH)= 1.78; pH=14-1.78= 12. HA + OH^- = A^- + H2O. 1 decade ago. Is that a buffer equation? See the answer (1) HA + OH … Ka = [H3O+] [ A-] / [HA] 1 0. skipper. 1 decade ago. HA + OH- = H2O + A- + q1 kj H+ + OH- = H2O + q2 kj the enthalpy of dissociation of ha is Dear student enthalpy of dissociation of HA is q2 – q1 Hope it helps I × Enroll For Free Now & Improve Your Performance. As the weak acid (HA) is titrated with a strong base (OH-), the neutralization reaction is:HA + OH - → A - + H2O.As the neutralization occurs, HA decreases and A- increases, allowing the solution to act as a buffer. It is a generalized equation for a mono protic acid in water. Join. Close. 7 answers. What happens if the ph drops, what happens to the equation? Lv 7. A^- + OH^- = HA + O2^-A. Suppose 0.0015 mol HA and 0.0005 mol A - are present in 125 mL solution. ? 3. Join Yahoo Answers and get 100 points today. Dr.A. how big is 18 mm x14 mm? HA(aq) + H2O(l) → H3O+(aq) + A−(aq)? No. 6 answers . (a) Get your answers by asking now. × Thank you for registering. HA + OH^- = H3O^+ + A^-5. A^- + H2O = HA + OH^-7. HA(aq) + OH-(aq) <-----> A-(aq) + H2O(aq) HINTS: Reactions to use, HA(aq) + H2O(l) <----> A-(aq) + H3O+(aq) H2O(l) + H20(l) <----> H3O+(aq) + OH-(aq) What would BO5 be called? Dabei steht HA für eine Brønsted-Säure (nach Johannes Nicolaus Brønsted), die ein Proton H + an ein Lösungsmittel wie Wasser abgeben kann, wobei ein Anion A − zurückbleibt. Relevance. HA + OH- + H2O <--> A- + 2H2O -5.21 kJ/mol (2nd equation) HA + H2O <---> A- + H3O+ 47.12 kJ/mol (add and cancel) 1 0. Click to Chat. Trending Questions. Question: (1) HA + OH- = A- + H2O (2) HA + H3O+ = H2A+ + H2O (3) HA + H2O = H3O+ + A- (4) HA + OH- = H3O+ + A- (5) A- + H3O+ = HA + H2O (6) A- + H2O = HA + OH- (7) A- + OH- = HA + O2- Which Of The Above Reactions Shows How A Solution Containing Only The Conjugate Base Can Be Converted To A Buffer Solution By Adding Some Strong Acid? 6. Answer Save. HA + H3O+ = H2A^+ + H2O. It is not a buffer : it is the dissociation of a weak acid. When methane is … Trending Questions. 2 Answers. Still have questions? 2. Lv 7. A^- + H3O^+ = HA + H2O. Please check your email for login details. Die Säurekonstante K S ist eine Stoffkonstante und gibt Aufschluss darüber, in welchem Maße ein Stoff in einer Gleichgewichtsreaktion mit Wasser unter Protolyse reagiert: + ⇌ + + −. One of our academic counsellors will contact you within 1 working day.