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Calculate the OH- concentration at equilibrium in the following reaction: NH3 (aq) + H20 (1) ->...
1) Calculate the OH- concentration at equilibrium in the following reaction: NH3 (aq) + H2O (l) -> NH4+ (aq) + OH- (aq) (Kb = 1.8 x10^(-5). (a) 1 x10^(-14) M (b) 2.7 x10^(-3) M (c) 7.2 x10^(-6) M (d) None of the above 2) Which of the following pH values indicates the most basic solution? (a) pH=12 (b) pH=4 (c) pH=8 (d) pH=9 3) Which of the following pH values indicate the most acidic solution? ( (a) pH=11 (b) pH=2...
13&14 please! Question 13 Write the equilibrium expression for the following reaction. HCIO4 (aq) -> H+ (aq) + CIO4- (aq) (1 point) * O Ka = ([H +][C104-1)/(HC104) O Ka = [H +)/(HC104] O ka = [H+][C104-1 O None of the above Question 14 Calculate the OH- concentration at equilibrium in the following reaction: NH3 (aq) + H2O (1) -> NH4+ (aq) + OH- (aq) (Kb = 1.8 x10^(-5) (1 point)* O 1x10^(-14) M O2.7 x10^(-3) M O 7.2 x10^(-6)...
Calculate the concentration of OH- at equilibrium in the following reaction: NH3 (aq) + H2O (l) -> NH4+ (aq) + OH- (aq) (Kb = 1.8 x10^(-5)
Question 10 Which of the following IS a strong acid (1 point ) * H2SO4 HCN HF NH3 Question 11 Write the equilibrium expression for a simple acid ionization. (HA (aq) -> H+ + A-) (1 point ) * Ka = ([H+][A-])/[HA] Ka = [H+]/[HA] Ka = [H+][A-] None of the above Question 12 Write the equilibrium expression for the following reaction. HF (aq) -> H+ (aq) + F- (aq) (1 point ) * Ka = ([H+][F-])/[HA] Ka = [H+]/[HA]...
QUESTION 4 Which is the correct equilibrium constant equation for the reaction indicated below? NH3(aq)+ H20() <-> NH4 (aq) + O(aq) [NH4 IOH K [H20]INH3] [NH4 IOH ] Ke [NH3] [H2O]INH3] Kc= [NH4 IOH [NH31 [NH4 11OH
Concerning the equation, NH3 + H20 <-> NH4+ + OH", (<-> consider as an equilibrium arrow) which of the following statements are TRUE? (i) NH3 and OH are weak bases. (ii) NH3 is a Bronsted base and NH4+ is its conjugate acid. (iii) H20 is a Bronsted acid and OH is its conjugate base. (iv) NH4+ is a weaker acid than H20. Oi, ii, iii Oi, i Oii, iv O ii, iii o all statements are true
Determine the ammonia concentration of an aqueous solution that has a pH of 11.30. The equation for the dissociation of NH3 (Kb = 1.8 × 10-5) is below: Determine the ammonia concentration of an aqueous solution that has a pH of 11.30. The equation for the dissociation of NH3 (Kb = 1.8 × 10-5) is below: a)9.0 × 10-3 mol L-1 b)2.7 mol L-1 c)0.22 mol L-1 d)2.0 × 10-3 mol L-1 NH3(aq) + H20(1) = NH4+(aq) + OH-(aq) NH3(aq)...
7&8 please! Question 7 Calculate the pH of a solution if the concentration of OH-is 6.79 x10^(-8) M (1 point) O 14 O 6.83 O 7.17 O None of the above Question 8 Calculate the concentration of H+ ions if the pOH of the solution is 3.56. (1 point) O 1x10^(-14) M O 2.75 x10^(-4) M O 3.63 x10^(-11) M O None of the above
Question 12 of 17 > Calculate the hydroxide ion concentration, [OH-], for a solution with a pH of 6.96. [OH-] = 3.98 x10-10 | М Incorrect Question 13 of 17 > Calculate the [OH-] and the pH of a solution with an (H+] = 6.6 x 10-12 M at 25°C. [OH-] = M pH = Calculate the (H+) and the pH of a solution with an [OH-] = 0.86 M at 25 °C. H+] = M pH = Calculate the...
Question 5 (1 point) Concerning the equation, ! Law NH3 + H2O <-> NH4+ + OH", (<-> consider as an equilibrium arrow) which of the following statements are TRUE? (0) NH3 and OH' are weak bases. (ii) NH3 is a Bronsted base and NH4+ is its conjugate acid. (iii) H20 is a Bronsted acid and OH is its conjugate base. (iv) NH4+ is a weaker acid than H20. O all statements are true 'Oi, ii, iii Oli, iv Oi, ii...