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18 Dec 2019

Write the dissociation reaction for the following acids in water H2O. State whether the acid is a strong acid or a weak acid. Is the reaction reversible? Identify the acid, base, conjugate acid, and conjugate base.

State the Dissociation reaction, Strong or Weak Acid, Is it reversable, Acid, Base, Conjugate Acid, Conjugate Base for each. PLEASE SHOW WORK, AND EXPLAIN.

1. H2CO3

2.HCI

3. HNO3

4. Write the equation that represents the reaction of hydrochloric acid in water.

Conjugate acid-base pair that includes hydrochloric acid:

Conjugate acid-base pair that does not include hydrochloric acid:

Does water act as an acid or a base in this reaction?

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Jamar Ferry
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31 Dec 2019

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Related questions

For conjugate acid-base pairs, how are Ka and Kb related?

Consider the reaction of acetic acid in water:

CH3CO2H (aq) + H2O (l) ⇌ CH3CO2− (aq) + H3O+ (aq)             where Ka = 1.8 × 10−5

  1. Which two bases are competing for the proton?
  2. Which is the stronger base?
  3. In light of your answer to part b. why do we classify the acetate ion (CH3CO2−) as a weak base? Use an appropriate reaction to justify your answer.
  4. In general, as base strength increases, conjugate acid strength decreases. Explain why the conjugate acid of the weak base NH3 is a weak acid.

 

To summarize, the conjugate base of a weak acid is a weak base and the conjugate acid of a weak base is a weak acid (weak gives you weak). Assuming Ka for a monoprotic strong acid is 1× 106, calculate Kb for the conjugate base of this strong acid.

Why do conjugate bases of strong acids have no basic properties in the water?

List the conjugate bases of the six common strong acids.

To tie it all together, some instructors have students think of Li+, K+, Rb+, Cs+, Ca2+, Sr2+, and Ba2+ as the conjugate acids of the strong bases LiOH, KOH, RbOH, CsOH, Ca(OH)2, Sr(OH)2, and Ba(OH)2. Although not technically correct, the conjugate acid strength of these cations is similar to the conjugate base strength of the strong acids. That is, these cations have no acidic properties in water; similarly, the conjugate bases of strong acids have no basic properties (strong gives you worthless). Fill in the blanks with the correct response. The conjugate base of a weak acid is a_____base. The conjugate acid of a weak base is a_____acid. The conjugate base of a strong acid is a_____base. The conjugate acid of a strong base is a_____ acid. ( Hint: Weak gives you weak and strong gives you worthless.)

19. Write the dissociation reaction for the following acids in water. Use appropriate arrows. Label the acid, base, conjugate acid, and conjugate base for each. Use lines to connect the acid with its conjugate base and the base with its conjugate acid.

a. HNO3 (nitric acid) + H2O

b. CH3COOH (acetic acid) + H2O

20. Calculate and insert the proper values to complete the following table:

pH

pOH

[H+] M

[OH-] M

Acidic or Basic Solution

3.79

6.21

8.03 x 10-5

4.72 x 10-2

Acetic Acidic

Acetic acid (CH3COOH) is a weak acid that reacts with water to form the acetate ion (CH3COO-). Write out the balanced reaction, and identify the acid, base, conjugate acid, and conjugate base.

The equilibrium constant, K, for the above reaction is 1.8x10-5. If you add 1.31 g of acetic acid (FW=60.5 g/mol) to 24.2 mL of water, what are the equilibrium concentrations of acetic acid and acetate? What is the pH?

The acetate ion is the conjugate base of acetic acid (CH3COOH), which is a weak acid with a pKa=4.74. Write out the balanced reaction when sodium acetate dissolves in water, and identify the acid, base, conjugate acid, and conjugate base. What is the equilibrium constant for this reaction?

If you add 1.72 g of sodium acetate (FW=82.0 g/mol) to 28.7 mL of water, what are the equilibrium concentrations of acetic acid and acetate? What is the pH?

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