(a)
Interpretation: The equilibrium concentration of
Concept introduction: Equilibrium concentration is defined as the state when reactants and products are present in concentrations which do not change with time. The equilibrium concentration occurs when the
(b)
Interpretation: The equilibrium concentration of
Concept introduction: Equilibrium concentration is defined as the state when reactants and products are present in concentrations which do not change with time. The equilibrium concentration occurs when the rate of forward reaction becomes equal to the rate of backward reaction.
(c)
Interpretation: The equilibrium concentration of
Concept introduction: Equilibrium concentration is defined as the state when reactants and products are present in concentrations which do not change with time. The equilibrium concentration occurs when the rate of forward reaction becomes equal to the rate of backward reaction.
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Chapter 15 Solutions
Chemistry: An Atoms First Approach
- Write the chemical equation and the expression for the equilibrium constant, and calculate Kb for the reaction of each of the following ions as a base. (a) sulfate ion (b) citrate ionarrow_forwardBoth ions in the salt ammonium acetate (NH4C2H3O2) hydrolyze in aqueous solution. Explain why this hydrolysis produces a neutral solution rather than an acidic or basic solution.arrow_forwardBoth ions in the salt ammonium cyanide (NH4CN) hydrolyze in aqueous solution. Explain why this hydrolysis produces a basic solution rather than an acidic solution.arrow_forward
- Given the equilibrium equation for the ionization of silver chloride below. What would happen to the amount of solid silver chloride if sodium chloride (NaCl) is added to the solution? Explain. AgCl (s) ⇌ Ag+1 (aq) + Cl -1 (aq)arrow_forwardThe equilibrium constant for this reaction is 5.88 x 104. If concentration of the lead ion is 5.24 M, whatis the concentration of the chloride ion?Pb2+(aq) + 2 Cl- (aq) ⇌ PbCl2(s)arrow_forwardA student prepared a 0.10 M solution of formic acid, HCHO, and allowed it to be dissociated. The [H3O]+ was found to be 4.2 x 10-3M. What is the acid dissociation constant, Ka for HCHO?arrow_forward
- Write a reversible reaction for the buffer decomposition of NH4 + into ammonia (NH3 + ) and H+ ionarrow_forwardIf the bicarbonate ion (HCO3-) concentration in a sample of blood is 0.00210 M, determine the carbonic acid (H2CO3) concentration required to buffer the pH of blood at pH = 7.40 H2CO3(aq) ⇌ HCO3-(aq) + H+(aq) Ka = 4.3 × 10-7 a. 1.10 M b. 0.00225 M c. 5.0 x 10-7 M d. 4.12 x 10-6 M e. 1.96 x 10-4 Marrow_forwardt 278w7e982arrow_forward
- 13,Mg(s)|Mg2+(aq) || Mn2+(aq ) | Mn(s) What would you change to decrease the Ecell Group of answer choices decrease Mn2+concentration increase Mn2+concentration increase concentration of both ions decrease Mg2+concentration decrease concentration of both ionsarrow_forwardWhat will happen if the pH of the following equilibrium system is increased? H*(aq) + 2CrO4²a yellow The solution will turn yellow. b. The solution will turn a darker orange. There will be no effect on the equilibrium system. 2- aq) O Cr20,² (aq) + OH (аq) orange а. с. d. The concentration of OH will decrease. (aq) All hydroxide ion will be used up. е.arrow_forwardIf the bicarbonate ion (HCO3-) concentration in a sample of blood is 0.135 M, determine the carbonic acid (H2CO3) concentration required to buffer the pH of blood at pH = 7.35. H2CO3(aq) ⇌ HCO3-(aq) + H+(aq) Ka = 5.3 × 10-7arrow_forward
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