Autoionization of Water

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What is the term used to describe the self-ionization of water?

Neutralization

Dissociation

Hydration

Autoionization (correct)

In the autoionization of water, what ions are formed in a 1:1 molar ratio?

Sodium and chloride ions

Proton and electron

Carbonate and bicarbonate ions

Hydronium and hydroxide ions (correct)

What happens to the concentrations of hydronium and hydroxide ions in pure water?

Hydronium concentration is higher

Hydroxide concentration is higher

They are not present

They are equal (correct)

How is a molecule acting as an acid defined in relation to proton donation?

Donates a proton to another molecule Signup and view all the answers

What is the molar ratio of hydronium and hydroxide ions when water undergoes autoionization?

1:1 Signup and view all the answers

What does the autoionization constant help determine in aqueous solutions?

Concentrations of hydronium and hydroxide ions Signup and view all the answers

In what form do hydronium and hydroxide ions exist in pure water compared to non-ionized water?

In extremely small concentrations Signup and view all the answers

What is the common name used to refer to the dissociation constant, as mentioned in the text?

Kw constant Signup and view all the answers

At 25 degrees C, the concentration of hydronium ions in pure water is approximately:

$10^{-7}$ M Signup and view all the answers

What is the negative logarithm of the Kw constant?

$-14$ Signup and view all the answers

In the pH scale, what does a high pH value indicate?

High hydroxide ion concentration Signup and view all the answers

When a solution becomes more acidic, what happens to the concentration of hydronium ions?

Increases Signup and view all the answers

Which principle describes the shift in equilibrium when an acid is added to pure water?

Le Chatelier's principle Signup and view all the answers

What happens to the product of hydronium and hydroxide ions concentrations in acidic solutions compared to pure water?

Becomes less than Kw Signup and view all the answers

"p" represents the negative logarithm of:

$[H_3O^+]$ Signup and view all the answers

Autoionization of Water

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Questions and Answers

What is the term used to describe the self-ionization of water?

In the autoionization of water, what ions are formed in a 1:1 molar ratio?

What happens to the concentrations of hydronium and hydroxide ions in pure water?

How is a molecule acting as an acid defined in relation to proton donation?

What is the molar ratio of hydronium and hydroxide ions when water undergoes autoionization?

What does the autoionization constant help determine in aqueous solutions?

In what form do hydronium and hydroxide ions exist in pure water compared to non-ionized water?

What is the common name used to refer to the dissociation constant, as mentioned in the text?

At 25 degrees C, the concentration of hydronium ions in pure water is approximately:

What is the negative logarithm of the Kw constant?

In the pH scale, what does a high pH value indicate?

When a solution becomes more acidic, what happens to the concentration of hydronium ions?

Which principle describes the shift in equilibrium when an acid is added to pure water?

What happens to the product of hydronium and hydroxide ions concentrations in acidic solutions compared to pure water?

"p" represents the negative logarithm of:

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