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Acids, Bases, and Salts Quiz: pH and Ion Concentration

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Acids, Bases, and Salts Quiz: pH and Ion Concentration

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Questions and Answers

What is the pH of a neutral solution?

7 (correct)

What happens to the pH of a solution when the concentration of H+ ions increases?

The pH increases

The pH becomes neutral

The pH decreases (correct)

The pH remains the same

Which of the following is a strong acid?

Acetic acid (CH3COOH)

Citric acid (C6H8O7)

Sulfuric acid (H2SO4)

Hydrochloric acid (HCl) (correct)

A substance that releases hydrogen ions in water is called an ______

acid Signup and view all the answers

A compound formed by the neutralization reaction between an acid and a base is called a ______

salt Signup and view all the answers

A substance that releases hydroxide ions in water is called a ______

base Signup and view all the answers

What is the difference between a Lewis acid and a Brønsted-Lowry acid?

A Lewis acid accepts a pair of electrons, while a Brønsted-Lowry acid donates a proton. Signup and view all the answers

Explain the concept of amphoteric substances and provide an example.

Amphoteric substances can act as both acids and bases, depending on the reaction conditions. An example is water, which can donate a proton (acting as an acid) in the presence of a stronger base, or accept a proton (acting as a base) in the presence of a stronger acid. Signup and view all the answers

Discuss the formation of a salt and explain why it is considered a neutral compound.

A salt is formed by the reaction between an acid and a base, where the hydrogen ion of the acid is replaced by a metal cation. Salts are considered neutral compounds because they do not affect the pH of a solution when dissolved in water. Signup and view all the answers