Chemistry Class 11 NCERT Solutions: Chapter 7 Equilibrium Part 12

Chemistry Class 11 NCERT Solutions Chapter 7 Equilibrium Part 12

Q: 33. The value of Equation for the reaction

Equation

Is Equation at Equation If the equilibrium concentration of Equation in air at Equation is Equation what is the concentration of Equation ?

Answer:

The given reaction is:

Equation

Then, Equation

It is given that Equation

Then, we have,

Equation

Equation

Equation

Equation

Hence, the concentration of Equation

Q: 34. The reaction Equation is at equilibrium at 1300 K in a 1L flask. It also contains 0.30 mol of CO, 0.10 mol of Equation and 0.02 mol of Equation and an unknown amount of Equation in the flask. Determine the concentration of Equation in the mixture. The equilibrium constant, Equation for the reaction at the given temperature is 3.90.

Answer:

Let the concentration of methane at equilibrium be X.

Equation

It is given that Equation

Therefore

Equation

Equation

Equation

Equation

Equation

Equation

Hence, the concentration of Equation at equilibrium is Equation

Q: 35. What is meant by the conjugate acid – base pair? Find the conjugate acid/base for the following species

Equation

Answer: A conjugate acid-base pair is a pair that differs only by one proton.

The conjugate acid-base for the given species is mentioned in the table below.

Equation

Q: 36. Which of the following are Lewis acids? Equation

Answer: Lewis acids are those acids, which can accept a pair of electrons. For example, Equation and Equation are Lewis acids.

Q: 37. What will be the conjugate bases for the Bronsted acids Equation

Answer: The table below lists the conjugate bases for the given Bronsted acids.

Equation

Q: 38. Write the conjugate acids for the following Bronsted bases: Equation

Answer: The table below lists the conjugate acids for the given Bronsted bases

Equation

Q: 39. The species: Equation and Equation can act both as Bronsted acids and bases. For each case give the corresponding conjugate acid and base.

Answer:

The table below lists the conjugate acids and conjugate bases for the given species.

Equation

Structure of Conjugate Acids and Conjugate Bases

Structure of Conjugate Acids and Conjugate Bases

Structure of Conjugate Acids and Conjugate Bases

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