Homework Answers
Q is the reaction quotient that represent the the state of system other than the state of equilibrium. When KOH will be added to the system it will disturb the equilibrium state. Since the released OH- will increase the concentration of the product side immediately, this means Q will be greater than K and hence reaction will proceed in backward direction, so that the Q can approach to K. Also, since basic solution is added that will increase the pH of the system. So
The correct option is B
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Homework. Unanswered Consider the following chemical equilibrium: HCOOH(aq) + H2O(aq) HCOO (aq) + H3O*(aq). Which the...
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) +H30*(aq). Which of the following graphs represents the perturbation on the system and the change of pH when more water is added to the container? IV pH time time time time
please show all work neatly 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 =...
please show all work neatly
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...
23) Consider the following generalized buffer solution equilibrium: BH+(aq) + H2O(1) H3O+(aq) + B(aq) 24) Select...
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.)...
NH4+(aq) + H2O (l) BLUE <--GREEN--> NH3(aq) + H3O+(aq) YELLOW NH4+ + H2O= Blue. NH3 +...
NH4+(aq) + H2O (l) BLUE <--GREEN--> NH3(aq) + H3O+(aq) YELLOW NH4+ + H2O= Blue. NH3 + H3O = Yellow. Mix is green at equilibrium. Q: When adding sodium hydroxide solution, the color of the equilibrium mixture changed from green ---> yellow. a. In which direction did the equilibrium shift? (L) left or (R) right b. Explain answer to a. Which ion was added or removed from the equilibrium mixture?
Consider the titration of formic acid (HCOOH) with potassium hydroxide (KOH) . Which species will be...
Consider the titration of formic acid (HCOOH) with potassium
hydroxide (KOH) . Which species will be present at the equivalence
point? Select all that apply.
Titration of 0.1200 M HCOOH with 0.2000 M KOH Consider the titration of formic acid (HCOOH) with potassium hydroxide (KOH). Which species will be present at the equivalence point? Select all that apply. 14.00 - 12.00 Check all that apply. 10.00 "OH(0) 8.00 pH > 7.00 at equivalence point PH Kol 6,00 4.00 OK HCOOH(aq)...
HIn(aq) + H2O(l)⇔In-(aq) + H3O+ (aq) WHEN added these following what are the chemical balance equ...
HIn(aq) + H2O(l)⇔In-(aq) + H3O+ (aq) WHEN added these following what are the chemical balance equation for the above equation? Write a chemical equation for each of the steps respectively. 2 mL of deionized water -> ? 1 drop of methyl orange-> ? 1 drop of 1M HCl -> ? 3 drops of 1M NaOH -> ?
Consider the following Bronsted-Lowry acid-base reaction: C6H5NH2 + HCOOH = C6H5NH3+ + HCOO Which of the...
Consider the following Bronsted-Lowry acid-base reaction: C6H5NH2 + HCOOH = C6H5NH3+ + HCOO Which of the following is a conjugate acid-base pair? O a. C6H5NH3+ and HCOO- O b. HCOOH and C6H5NH3+ a C6H5NH2 and HCO2H هنا Od. C6H5NH3 and C6H5NH2 e. HCOO and C6H5NH2
Consider the following equilibrium for nitrous acid, HNO2, a weak acid: HNO2 (aq) + H2O (l)...
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?
HW U6M2a Equilibrium Constant A Homework. Unanswered Aniline (C6H5NH) has a pK) = 9.13. What is...
HW U6M2a Equilibrium Constant A Homework. Unanswered Aniline (C6H5NH) has a pK) = 9.13. What is the value of the equilibrium constant for this reaction: C6H5NH2(aq) + H2O(l) = C6H5NH(aq) + OH(aq)? 1.35x10-5 O B 7.41x10-10 O C More information is needed to decide O D 4.35x10-7 1 attempt left. Change your responses to resubmit Answered - Incorrect Equilibrium Constant B Homework. Unanswered Triethylamine (CzHs); N) has a pKb = 3.25. What is the value of the equilibrium constant K...
3. Consider the following general reaction, at room temperature: HClO2 (aq) + H2O (l) ⇌ H3O+(aq)...
3. Consider the following general reaction, at room temperature: HClO2 (aq) + H2O (l) ⇌ H3O+(aq) + ClO2–(aq) Ka = 1.2 x 10-2 Initially, a reaction contained 0.100 M HClO2 then it reached equilibrium. Set up an ICE table to calculate the [H3O+(aq)]. Using the “x is small approximation”, which of the following best describes the calculated percentage change in the initial amount of acid? A) 3.46% B) 34.6% C) 12.0% D) 28.9%
Homework – Unanswered Consider the following chemical equilibrium: HCOOH(aq) + H2O(aq) =HCOO (aq) +H30*(aq). Which of the following graphs represents the perturbation on the system and the change of pH when more water is added to the container? IV pH time time time time
please show all work neatly
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...
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.)...
Consider the titration of formic acid (HCOOH) with potassium
hydroxide (KOH) . Which species will be present at the equivalence
point? Select all that apply.
Titration of 0.1200 M HCOOH with 0.2000 M KOH Consider the titration of formic acid (HCOOH) with potassium hydroxide (KOH). Which species will be present at the equivalence point? Select all that apply. 14.00 - 12.00 Check all that apply. 10.00 "OH(0) 8.00 pH > 7.00 at equivalence point PH Kol 6,00 4.00 OK HCOOH(aq)...
Consider the following Bronsted-Lowry acid-base reaction: C6H5NH2 + HCOOH = C6H5NH3+ + HCOO Which of the following is a conjugate acid-base pair? O a. C6H5NH3+ and HCOO- O b. HCOOH and C6H5NH3+ a C6H5NH2 and HCO2H هنا Od. C6H5NH3 and C6H5NH2 e. HCOO and C6H5NH2
HW U6M2a Equilibrium Constant A Homework. Unanswered Aniline (C6H5NH) has a pK) = 9.13. What is the value of the equilibrium constant for this reaction: C6H5NH2(aq) + H2O(l) = C6H5NH(aq) + OH(aq)? 1.35x10-5 O B 7.41x10-10 O C More information is needed to decide O D 4.35x10-7 1 attempt left. Change your responses to resubmit Answered - Incorrect Equilibrium Constant B Homework. Unanswered Triethylamine (CzHs); N) has a pKb = 3.25. What is the value of the equilibrium constant K...
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