For the following reaction: HA(aq) + H2O(l) ⇌ H+(aq) + A-(aq),
Kc = 2x10-7 at 25oC
The initial concentration of [HA] = 0.50M.
What is the [H+] of the solution at equilibrium?
Hint: you can assume x is small in comparison to 0.5M.
For the following reaction: HA(aq) + H2O(l) ⇌ H+(aq) + A-(aq), Kc = 2x10-7 at 25oC...
At 25oc, Kc = 0.090 for the following reaction. H2O(g) + Cl2O(g) 2 HOCl(g) Calculate the equilibrium concentration of all species if the initial concentration of HOCl = 1.50 M. H2O(g) + Cl2O(g) 2 HOCl(g) Start Change Equil.
1. At 25oc, Kc = 0.090 for the following reaction. H2O(g) + Cl2O(g) 2 HOCl(g) Calculate the equilibrium concentration of all species if the initial concentration of HOCl = 1.50 M. H2O(g) + Cl2O(g) 2 HOCl(g) Start Change Equil.
HBrO (aq) + H2O (l) ⇋ H3O+ (aq) + BrO- (aq) If the value of Kc for this process is 5.2 x 10-5, there is no H3O+ or BrO- initially present, and the initial [HBrO] = 0.354 M, what will be the concentration of BrO- at equilibrium?
Water ionizes by the equation H2O(l)⇌H+(aq)+OH−(aq) The extent of the reaction is small in pure water and dilute aqueous solutions. This reaction creates the following relationship between [H+] and [OH−]: Kw=[H+][OH−] Keep in mind that, like all equilibrium constants, the value of Kw changes with temperature. Part A What is the H+ concentration for an aqueous solution with pOH = 3.02 at 25 ∘C?
Now, for a complete equilibrium problem Consider the following general reaction: HC2H3O2 (aq) + H2O (l) ⇌ H3O+ (aq) + C2H3O2–(aq) Kc = 1.8 x 10–5 (at 25 ºC) If a solution initially contains (7.9x10^-1) M of HC2H3O2, (and no H3O+ or C2H3O2– ), what is the equilibrium concentration of H3O+ (aq) in the mixture? In the appropriate blanks, provide the equilibrium [H3O+ (aq)], in the solution, in M, to two significant figures and to the appropriate power
Consider the following reaction: HC2H3O2(aq)+H2O(l)⇌H3O+(aq)+C2H3O−2(aq) Kc=1.8×10−5 at 25∘C If a solution initially contains 0.180 M HC2H3O2, what is the equilibrium concentration of H3O+ at 25∘C? Express your answer using two significant figures.
Calculate the value of Kc for the generic acid-base reaction: B (aq) + HA(aq) BH(aq) + A-(aq) Kc = ? Given the following information B(aq) + H20 (1) BH(aq) + OH"(aq) Kb = 2.80 x 10-7 HA(aq) + H2O(1) = A*(aq) + H30+(aq) Kg = 1.00 x 10-5 2H2O(1) = H30+ (aq) + OH- (aq) Kw = 1.00 x 10-14 Calculate Kc for the following reaction: Ex-(aq) + HA(aq) = BH(aq) + F"(aq) Kc = ? Record your answer in...
A monoprotic weak acid, HA, dissociates in water according to the reaction HA(aq) + H2O(1) H2O+(aq) + A-(aq) The equilibrium concentrations of the reactants and products are [HA] = 0.250 M, H,O+] = 2.00 x 10-4 M, and [A-] = 2.00 x 10-4 M. Calculate the Ka value for the acid HA. Ka = 6.79588
At 25oC, the equilibrium constant for the reaction 2 A(aq) ----> B(aq) + C(aq) is 1.80 . If the concentration of B(aq) is 0.307 M and the concentration of C(aq) is 0.521 M, what would be the minimal concentration of A(aq) (in mol/L) required to make the reaction spontaneous?
Phenol (C,H,OH), commonly called carbolic acid, is a weak organic acid. C, H, OH(aq) + H2O(l) = C, H50- (aq) + H2O + (aq) K. -1.3 x 10-10 If you dissolve 0.157 g of the acid in enough water to make 253 mL of solution, what is the equilibrium hydronium ion concentration [Bot]- What is the pH of the solution? pH-