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]
Ka = [H+][F-]
None of the above
Question 13
Write the equilibrium expression for the following reaction. HClO4 (aq) -> H+ (aq) + ClO4- (aq) (1 point ) *
Ka = ([H+][ClO4-])/[HClO4]
Ka = [H+]/[HClO4]
Ka = [H+][ClO4-]
None of the above
Question 14
Calculate the OH- concentration at equilibrium in the following reaction: NH3 (aq) + H2O (l) -> NH4+ (aq) + OH- (aq) (Kb = 1.8 x10^(-5) (1 point ) *
1 x10^(-14) M
2.7 x10^(-3) M
7.2 x10^(-6) M
None of the above
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Question 10 Which of the following IS a strong acid (1 point ) * H2SO4 HCN...
11&12 please! Question 11 Write the equilibrium expression for a simple acid ionization. (HA (aq) -> H+ + A-) (1 point) * Ka = ([H+][A-])/[HA] O Ka = [H +)/(HA) Ka = [H +][A-] O None of the above Question 12 Write the equilibrium expression for the following reaction. HF (aq) -> H+ (aq) + F- (aq) (1 point) * O Ka = ([H+][F-1)/(HA) O ka = [H +)/(HA) Ka = [H +][F-1 O None of the above
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)...
9&10 please! Question 9 Which of the following is NOT a strong acid? (1 point) * HCI04 HF HI HNO3 Question 10 Which of the following is a strong acid (1 point) * H2S04 HCN HF NH3
Given the following acid dissociation constants, Ka (HNO2) = 4.0 x 10-4 Ka (HCN) = 4.0 x10-10 determine the equilibrium constant for the reaction below. HCN(aq) + NO2 - (aq) CN- (aq) + HNO2(aq)
Calculate the OH- concentration at equilibrium in the following reaction: NH3 (aq) + H20 (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) M O None of the above Question 15 Which of the following pH values indicates the most basic solution? (1 point)* O pH=12 O pH=4 O pH=8 O pH=9
Given the following information: hydrofluoric acid = HF hydrocyanic acid - HCN HF is a stronger acid than HCN (1) Write the net ionic equation for the reaction that occurs when equal volumes of 0.074 M aqueous hydrofluoric acid and sodium cyanide are mixed. It is not necessary to include states such as (aq) or ($). (2) Which is the stronger base. For CN? (3) At equilibrium the y will be favored.
Question Completion Status: QUESTION 10 Select the Lewis acid and Lewis base in this reaction. Cu2+(aq) + 6 NH3(aq) - Cu(NH3162 (aq) Cu2+ is the Lewis acid, and NH3 is the Lewis base, NH3 is a base, but there is no acid NH3 is the Lewis acid, and Cu?" is the Lewis base None of the above QUESTION 11 The following combination of species will result in buffer solution a. HCO3 and cog-2 True False QUESTION 12 The complex lon...
04 Question (1 point) @ See page 729 A buffer solution inckudes a weak acid and its conjugate base. 4th attempt Feedback del See Periodic Table ’See Hint Include states of matter. Write a balanced chemical equation for the equilibrium reaction occurring in a buffer containing NH3 and NHACI. Write the equation so that its equilibrium constant is equivalent to Ka NH;(aq) + H2O(1) _ NII;(aq) +OH"(aq) 3rd attemnt 04/18 TRY AGAIN VIEW SOLUTION C 14 OF 18 QUESTIONS COMPLETED
1. For each reaction below Classify each acid, base, conjugate acid, and conjugate base as a strong acid, weak acid, strong base, or a weak base. Calculate the value of the equilibrium constant II. I. Determine if these reactions need to be treated as an equilibrium (needing an ICE table) or a stoichiometry problem (assuming the reaction goes essentially to completion) a. F-(aq) H2O() HF(aq) + H3O*(aq) + H2O(1) NH3(aq) + b. NH4 (aq) OH (aq) + H3O*(aq) NH3(aq) +...
please help Question Completion Status: QUESTION 11 Which one is correct answer for Kb? CN (aq) + H20 (1) + HCN (aq) + OH- (aq) ОА OB.F (aq) + H20 (1) + HF(aq) + OH-(aq) OC Zn(OH)6 (aq) + H2O(l) — [Zn(OH)5(OH2)]+ e- 2+ HCN(aq) + F(aq) + CN (aq) + HF(aq) E. Both A and B is for Kb Click Save and Submit to save and submit. Click Save All Answers to save all answers. QUESTION 12 of the...