Homework – Unanswered Consider the following chemical equilibrium: HCOOH(aq) + H2O(aq) =HCOO (aq) +H30*(aq). Which of...
Homework. Unanswered Consider the following chemical equilibrium: HCOOH(aq) + H2O(aq) HCOO (aq) + H3O*(aq). Which the following graphs represents the perturbation on the system and the change of pH when KOH is added to the container? Q PH time time time
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5. (2 pts) Consider the following acids and their dissociation constants HPO4-2(aq) + H2O.. H3O"(aq) + PO4-3(aq) Ka-2.2x 10.13 HCOOH(aq) H20 H3O (a) HCOO (aq) Ka = 1.8x10-4 a. Which is the weaker acid, HPO42 or HCOOH? b. What is the conjugate base of, HPO42 or c. Which acid has the weaker conjugate base? d. Which acid produces more ions? 6. (2 pts) Write a balanced equation for the neutralization of H3PO4(aq) and NaOH(aq) (3...
NaOH is added to the following reaction: NH4+(aq) + H2O(l)-->H30+(aq)+NH3(aq) Using Le Châtelier's Principle, state in which direction the equilibrium will shift in response to the change. Briefly defend your answer.
At 298K, the equilibrium constant for the following reaction is 1.00 107 H2S(aq) + H2O- H30"(aq) + HS-(aq) The equilibrium constant for a second reaction is 1.00 10-19. Use this information to determine the equilibrium constant for the reaction: (aq)+2H2O 2H3O K- Submit Answer Retry Entire Group 9 more group attempts remaining
Question 8 Which change increases the amount of H30+ (aq) in the equilibrium system described by the equation below: H2O(1) + CO2(g) --> CO3(aq) + NaOH(aq) + H30+ (aq) O removal of CO2 addition of CO2 O increase in pressure addition of NaOH
For which of the following reactions will the reactants be favored at equilibrium? NH3(aq) + H30+ (aq) = NH4+ (aq) + H20(1) CO32- (aq) + H30+ (aq) = HCO3(aq) + H2O(1) CH3COOH(aq) + OH(aq) = CH3COO" (aq) + H2O(1) HSO3- (aq) + H3O+ (aq) =H2SO3(aq) + H2O(1) CIOA" (aq) + H3PO4(aq) = HCIO4(aq) + H2PO4" (aq)
Consider the following equilibrium for nitrous acid, HNO2, a weak acid: HNO2 (aq) + H2O (l) <--------------> H3O+ (aq) + NO2- In which direction will the equilibrium shift if a) NaOH is added? b) NaNO2 is added? c) HCl is added? d) The acid solution is made more dilute?
Which of the following chemical reactions represents the ionization of water? 0 H2O(l) H2O+(aq) + e- O H+(aq) + OH-(aq)= H2O(l) O H2O(l)-H2O-(aq) 2H20 2H2(g)+ 02(8) O H2O(l)-H'(aq) + OH-(aq)
23) Consider the following generalized buffer solution equilibrium: BH+(aq) + H2O(1) H3O+(aq) + B(aq) 24) Select the ionic compound that is insoluble in water. A) Fe(NO3)3 B) MgS C) KBr D) NaCO3 E) NH_Br Consider the following generalized buffer solution equilibrium: BH+(aq) + H2O(1) H3O+(aq) + B(aq) When a small amount of a strong base such as sodium hydroxide is added to ti solution, which of the four species shown would experience an increase in concentration? (Hint: Use LeChatelier's principle.)...
13. Consider the reactions below; H2S(g) + H2O(1) H2S(g) + 2H2O(l) H30'(aq) + HS (ag); K1 - 2.5 x 10 + 2H30 (aq) + (aq); K3 = 6.8 x 10-16 Use the information above to calculate the K for the reaction given below (6 points); HS (aq) + H2O(0) H:0 (aq) + (aq); K = ? 14. Consider the reaction below; 2NO2(g) + 2Cl2 2NOCl2(g) + O2(g) If the equilibrium constant Kat 100°C is 1.5 x 10, calculate its k....