The K a expression for the given HCN acids in water has to be written. Concept introduction: Balancing reaction: Balanced reaction is a chemical reaction in which number of atoms for each element in the reaction and the total charge are same on both reactant side and the product side. Steps in balancing the information. Step 1: Write the unbalanced equation Step 2: Find the coefficient to balance the equation. The coefficient should be reduced to the smallest whole number. An equilibrium constant ( K ) is the ratio of concentration of products and reactants raised to appropriate stoichiometric coefficient at equlibrium. For the general acid HA, HA ( aq ) + H 2 O ( l ) ⇌ H 3 O + ( aq ) + A − ( aq ) The relative strength of an acid and base in water can be also expressed quantitatively with an equilibrium constant as follows: K a = [ H 3 O + ] [ A − ] [ HA ] ( 1 ) An equilibrium constant ( K ) with subscript a indicate that it is an equilibrium constant of an acid in water.
The K a expression for the given HCN acids in water has to be written. Concept introduction: Balancing reaction: Balanced reaction is a chemical reaction in which number of atoms for each element in the reaction and the total charge are same on both reactant side and the product side. Steps in balancing the information. Step 1: Write the unbalanced equation Step 2: Find the coefficient to balance the equation. The coefficient should be reduced to the smallest whole number. An equilibrium constant ( K ) is the ratio of concentration of products and reactants raised to appropriate stoichiometric coefficient at equlibrium. For the general acid HA, HA ( aq ) + H 2 O ( l ) ⇌ H 3 O + ( aq ) + A − ( aq ) The relative strength of an acid and base in water can be also expressed quantitatively with an equilibrium constant as follows: K a = [ H 3 O + ] [ A − ] [ HA ] ( 1 ) An equilibrium constant ( K ) with subscript a indicate that it is an equilibrium constant of an acid in water.
Definition Definition Number that is expressed before molecules, ions, and atoms such that it balances out the number of components present on either section of the equation in a chemical reaction. Stoichiometric coefficients can be a fraction or a whole number and are useful in determining the mole ratio among the reactants and products. In any equalized chemical equation, the number of components on either side of the equation will be the same.
Chapter 18, Problem 18.9P
(a)
Interpretation Introduction
Interpretation:
The Ka expression for the given HCN acids in water has to be written.
Concept introduction:
Balancing reaction:
Balanced reaction is a chemical reaction in which number of atoms for each element in the reaction and the total charge are same on both reactant side and the product side.
Steps in balancing the information.
Step 1: Write the unbalanced equation
Step 2: Find the coefficient to balance the equation.
The coefficient should be reduced to the smallest whole number.
An equilibrium constant(K) is the ratio of concentration of products and reactants raised to appropriate stoichiometric coefficient at equlibrium.
For the general acid HA,
HA(aq)+H2O(l)⇌H3O+(aq)+A−(aq)
The relative strength of an acid and base in water can be also expressed quantitatively with an equilibrium constant as follows:
Ka=[H3O+][A−][HA](1)
An equilibrium constant (K) with subscript a indicate that it is an equilibrium constant of an acid in water.
(b)
Interpretation Introduction
Interpretation:
The Ka expression for the given HCO3− acids in water has to be written.
Concept introduction:
Balancing reaction:
Balanced reaction is a chemical reaction in which number of atoms for each element in the reaction and the total charge are same on both reactant side and the product side.
Steps in balancing the information.
Step 1: Write the unbalanced equation
Step 2: Find the coefficient to balance the equation.
The coefficient should be reduced to the smallest whole number.
An equilibrium constant(K) is the ratio of concentration of products and reactants raised to appropriate stoichiometric coefficient at equlibrium.
For the general acid HA,
HA(aq)+H2O(l)⇌H3O+(aq)+A−(aq)
The relative strength of an acid and base in water can be also expressed quantitatively with an equilibrium constant as follows:
Ka=[H3O+][A−][HA](1)
An equilibrium constant (K) with subscript a indicate that it is an equilibrium constant of an acid in water.
(c)
Interpretation Introduction
Interpretation:
The Ka expression for the given HCOOH acids in water has to be written.
Concept introduction:
Balancing reaction:
Balanced reaction is a chemical reaction in which number of atoms for each element in the reaction and the total charge are same on both reactant side and the product side.
Steps in balancing the information.
Step 1: Write the unbalanced equation
Step 2: Find the coefficient to balance the equation.
The coefficient should be reduced to the smallest whole number.
An equilibrium constant(K) is the ratio of concentration of products and reactants raised to appropriate stoichiometric coefficient at equlibrium.
For the general acid HA,
HA(aq)+H2O(l)⇌H3O+(aq)+A−(aq)
The relative strength of an acid and base in water can be also expressed quantitatively with an equilibrium constant as follows:
Ka=[H3O+][A−][HA](1)
An equilibrium constant (K) with subscript a indicate that it is an equilibrium constant of an acid in water.
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