Kc calculations and acids and bases

A strong acid is defined as

• a substance that only ionizes partially in an aqueous solution.

• a substance that dissociates completely in an aqueous solution.

• a substance that ionizes completely in an aqueous solution.

• A substance that are able to donate more than one proton.

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acids and bases

The Kc indicates

• The relationship between the product and the reactant concentrations at equilibrium, and is constant at a specific temperature.

• The measure of the extent of dissociation.

• The measure of the extent of ionization for an acid.

Choose the CORRECT option:

• A high Kc value indicates that a higher concentration of reactants than products are present.

• A high Kc indicates that the equilibrium lies to the left.

• A low Kc indicates that a lot of product has been formed and there is a higher concentration of products than reactants.

• A low Kc indicates that the equilibrium lies to the right.

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Chemical equilibrium

The name of the following common acid is:

HNO₃ 

• Nitrateic acid

• nitrate acid

• Nitric acid

• Ammoniac acid

• 4.89 x10^-3

• 4, 98 x10^-3

• 4.89 x10³

• 0.000489

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Chemical equilibrium

• 6.18

• 1.68

• 8.61

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Chemical equilibrium

• HCO₃^- is the base

  HSO₄^- is the acid

• HCO₃^- is the acid

  HSO₄^- is the base

• SO₄^2- is the base

  HCO₃^- is the acid

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acids and bases

The formula for the conjugate acid of NH₃ is:

• NH₂⁺

• NH4⁺

• NH₃⁺

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acids and bases

The formula for the conjugate base of HCO₃^- is:

• H₂CO₃^2-

• H₂CO₃

• CO₃^-

• CO₃^2-

Tags

acids and bases