Homework Answers
a) HCl(aq) + H2O(l) -------------> H3O+(aq) + Cl-(aq) HCl is strong acid so dissociates completely
b) H2SO3(aq) + H2O(l) <-----------> HSO3-(aq) + H3O+(aq) H2SO3 is weak acid so dissociates partialy
for weak acids
Ka = [H3O+][HSO3-]/[H2SO3]
c) HNO3(aq) + H2O(l) ------------> H3O+(aq) + NO3-(aq) HNO3 is strong acid so dissociates completely.
d) HCN(aq) + H2O(l) <--------------> CN-(aq) + H3O+(aq) HCN is weak acid so dissociates partially
Ka = [H3O+][CN-] / [HCN]
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8. Please write out the reaction for each of the following acids when dissolved in water....
1. Write the equilibrium expression for the autoionization of water. Using this expression define the terms...
1. Write the equilibrium expression for the autoionization of water. Using this expression define the terms acid and base and pH. 2. Calculate the pH, pOH, Ka, Kb, pKa, and pKb for a 0.082M solution of triethylamine. 3. Calculate the pH, pOH, Ka, Kb, pKa, and pKb for a 1.570 M solution of hydrogen cyanide. 4. The acid-dissociation constant for hypochlorus acid is 3.0 X 10-8. Calculate the concentrations of H3O+, CIO-, and HCIO at equilibrium if the initial concentration...
Write the dissociation reaction and the corresponding Ka equilibrium expression for each of the following acids...
Write the dissociation reaction and the corresponding Ka equilibrium expression for each of the following acids in water. (For the dissociation reaction, include states-of-matter under the given conditions in your answer. Use the lowest possible whole number coefficients. Concentration equilibrium expressions take the general form: Kc = [C]c / [A]a . [B]b. Subscripts and superscripts that include letters must be enclosed in braces {}.) (a) HC7H13O2(aq) dissociation reaction: equilibrium expression: (b) Cr(H2O)63+ dissociation reaction: equilibrium expression: (c) C3H7NH3+ dissociation reaction: equilibrium expression:
Write the Ka or Kb expression for each of the following compounds upon reaction with water....
Write the Ka or Kb expression for each of the following compounds upon reaction with water. a. HCl b. NH3 c. HNO3 d. KOH
Rank the following acids in order of increasing acid strength when dissolved in water. EXPLAIN your...
Rank the following acids in order of increasing acid strength when dissolved in water. EXPLAIN your ranking using both inductive effect (think about the O atoms) and the stability of the product (draw all the resonances of the product, think about the number of resonances) HMnO4, H3AsO4, H2SO3, H2SO4
Write the balanced chemical equation for the reaction of the weak acid HCN with water. Include...
Write the balanced chemical equation for the reaction of the weak acid HCN with water. Include the phase of each species. chemical equation: HCNaq +H,9, H,09 + CNaq Complete the K, expression for this reaction. Answer Bank Ka= [ H0] (CN) [,0] HCN] [OH) [H]
please help with #3 a and b 3. Write the dissociation reaction for the following acids in water. Use appropriate ar...
please help with #3 a and b
3. Write the dissociation reaction for the following acids in water. Use appropriate arrow symbols. Label the Bronsted-Lowry acid, base, conjugate acid, and conjugate base for each, then draw lines to connect the appropriate conjugate pairs: (4 pts) a. C.H.COOH (benzoic acid) + H20 b. HCI (hydrochloric acid) + H20
For each of the following metals, write their balanced reaction for when they react with HNO3...
For each of the following metals, write their balanced reaction for when they react with HNO3 a) Al(s) b) k(s) c) Na(s) d) Mg(s)?
1- Write the equations for the reaction of the following Bronsted acids with water: (a)H2O ....
1- Write the equations for the reaction of the following Bronsted acids with water: (a)H2O . (b)H2AsO4- (c) H2AsO4 2-Write the equations for the reaction of the following Bronsted acids with water: (a)CH3CO2- (b) HAsO4 2- (c) (CH3)3N 3- Give the letters of the solutions below that represent buffers: a- a solution of sodium hydrogen carbonate and sodium carbonate b- a solution of sodium dihydrogen phosphate in water c- a solution of ammonia and ammonium chloride d- a solution of...
1. Write the equations for the reaction of the following Bronsted acids with water: (a) H2S...
1. Write the equations for the reaction of the following Bronsted acids with water: (a) H2S (b) HC2O4- (c) HSO3- 2. Write equations for the reactions of the following Bronsted bases with water: (a) PO4 3- (b) N2H4 (c) H2C6H5O7- 3. In each of the following questions, assume that there is no volume change when HCl is added to water in part (a) or the phosphate buffer in part (c). (a) Calculate the pH when 0.129 moles of HCl are added...
4. Equal moles of the indicated acids are dissolved in the ammon of he acid be...
4. Equal moles of the indicated acids are dissolved in the ammon of he acid be beakers below. In which solution will the percent ionization of water shown in the of the acid be the lowest? Op -HC a. All have equal percent ionization of acid. c.Ⅳ e. 5. For a 0.05 M H2SOs solution, which of the following relationships is true? b. [SO327 키HS037 C [HSOs 1> [H2SO3] dHSH) 6. Which of the following reactions is associated with the...
1. Write the equilibrium expression for the autoionization of water. Using this expression define the terms acid and base and pH. 2. Calculate the pH, pOH, Ka, Kb, pKa, and pKb for a 0.082M solution of triethylamine. 3. Calculate the pH, pOH, Ka, Kb, pKa, and pKb for a 1.570 M solution of hydrogen cyanide. 4. The acid-dissociation constant for hypochlorus acid is 3.0 X 10-8. Calculate the concentrations of H3O+, CIO-, and HCIO at equilibrium if the initial concentration...
Write the balanced chemical equation for the reaction of the weak acid HCN with water. Include the phase of each species. chemical equation: HCNaq +H,9, H,09 + CNaq Complete the K, expression for this reaction. Answer Bank Ka= [ H0] (CN) [,0] HCN] [OH) [H]
please help with #3 a and b
3. Write the dissociation reaction for the following acids in water. Use appropriate arrow symbols. Label the Bronsted-Lowry acid, base, conjugate acid, and conjugate base for each, then draw lines to connect the appropriate conjugate pairs: (4 pts) a. C.H.COOH (benzoic acid) + H20 b. HCI (hydrochloric acid) + H20
4. Equal moles of the indicated acids are dissolved in the ammon of he acid be beakers below. In which solution will the percent ionization of water shown in the of the acid be the lowest? Op -HC a. All have equal percent ionization of acid. c.Ⅳ e. 5. For a 0.05 M H2SOs solution, which of the following relationships is true? b. [SO327 키HS037 C [HSOs 1> [H2SO3] dHSH) 6. Which of the following reactions is associated with the...
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