8.1 Bronsted acid base

The following statement is true for arrhenius acid and base EXCEPT

• Arrhenius acid produces H⁺ ions
• Arrhenius base produces OH^- ions
• H₂O need to be present for arrhenius acid base to dissociate
• Hydrogen atoms that make the solution acidic

The following statement is true for Bronsted Lowry Conjugate Acid Base pair EXCEPT

• Bronsted Lowry Acid is a proton donor
• Bronsted Lowry Acid is a electron pair acceptor
• Conjugate acid has 1 hydrogen atom more than base
• Conjugate base has 1 hydroxide more than base

Which of the following shows the correct conjugate acid base pair?

• HCI (acid) / H₃O⁺ (conjugate base)
• HCI (acid) / CI^- (conjugate base)
• HCI (base) / CI^- (conjugate acid)
• HCI (base) / H₃O⁺ (conjugate acid)

Which of the following shows the correct conjugate acid base pair?

• H₂O (base) / H₃O⁺ (conjugate acid)
• H₂O (acid) / CH₃COO^- (conjugate base)
• CH₃COOH (acid) / H₃O⁺ (conjugate base)
• CH₃COOH (base) / CH₃COO^- (conjugate acid)

Which of the following shows the correct conjugate acid base pair?

• SO₃^2-(base) / HSO₃^- (conjugate base)
• HPO₄^2- (acid) / HSO₃^-(conjugate base)
• SO₃^2-(acid) / HSO₃^- (conjugate base)
• HPO₄^2- (acid) / PO₄^3-(conjugate base)

Tags

NGSS.HS-PS1-2

HCI dissociates completely and is irreversible. Why?

• HCI is a strong acid and CI^- is a weak base
• H₂O is a weak base
• CI^- is a strong conjugate base, will not accept H⁺ from H₃O⁺
• CI^- is a weak conjugate base, will not accept H⁺ from H₃O⁺

CH₃COOH dissociates partially and is reversible. Why?

• CH₃COOH is a weak acid and H₃O⁺ is strong conjugate base
• CH₃COO^- is a weak base and CH₃COOH is strong conjugate acid
• CH₃COOH is weak acid and CH₃COO^- is strong conjugate base
• CH₃COOH is a weak acid and CH₃COO^- is a weak conjugate base

Tags

NGSS.HS-PS1-2

NH₃ dissociates partially and is reversible. Why ?

• NH₃ is a weak acid and NH₄⁺ is a strong conjugate base
• NH₃ is a weak base and NH₄⁺ is a conjugate acid
• NH₄⁺ is a strong conjugate acid, donate H⁺ to form back NH₃
• NH₃ is a weak base and OH^- is a strong conjugate acid

Tags

NGSS.HS-PS1-2

NGSS.HS-PS1-6

The following statement is true EXCEPT

• Dissociation for strong acid is unidirectional
• Dissociation for weak acid is reversible
• Weak acid has a strong conjugate base
• Strong acid has a weak conjugate base

Tags

NGSS.HS-PS1-2

H₂O is amphiprotic, can act as acid or base. Which of the following is TRUE ?

• H₂O is an acid because it is a proton donor
• H₂O is an base because it is a proton acceptor
• H₂O can gain or lose a proton, H⁺
• H₂O can easily form hydronium ion, H₃O⁺