What will be the pH if this salt is added to water: NH 4 NO 2 Ka HNO 2 = 4.0x10 -4 Kb NH 3 = 1.8 x 10 -5

pH < 7, NH4+ is a stronger acid than NO2- is a base

pH > 7, NH3 is a stronger base than HNO2 is an acid

pH < 7 HNO2 is the stronger acid than NH3 is a base

pH > 7, NO2- is the stronger base than NH4+ is an acid

What will be the pH if this salt is added to water: C 5 H 6 NCN Ka HCN = 6.2 x 10 -10 Kb C 5 H 5 N = 1.7 x 10 -9

pH > 7, CN- is the stronger base than C 5 H 6 N+ is an acid

pH > 7, C 5 H 5 N is a stronger base than HCN is an acid

pH < 7 HCN is the stronger acid than C 5 H 5 N is a base

pH < 7, C 5 H 6 N+ is a stronger acid than CN- is a base

What will be the pH if this salt is added to water: NH 4 ClO pKa HClO = 7.46 pKb NH 3 = 4.74

pH > 7, ClO- is the stronger base than NH4+ is an acid

pH > 7, NH3 is a stronger base than HClO is an acid

pH < 7 HClO is the stronger acid than NH3 is a base

pH < 7, NH4+ is a stronger acid than ClO- is a base

A buffer solution is made from lactic acid (pKa = 3.86) and sodium lactate. At a pH of 2, which is true?

[HC 3 H 5 O 3 ] > [NaC 3 H 5 O 3 ]

[HC 3 H 5 O 3 ] ~= [NaC 3 H 5 O 3 ]

[HC 3 H 5 O 3 ] < [NaC 3 H 5 O 3 ]

A buffer solution is made from lactic acid (pKa = 3.86) and sodium lactate. At a pH of 4, which is true?

[HC 3 H 5 O 3 ] ~= [NaC 3 H 5 O 3 ]

[HC 3 H 5 O 3 ] > [NaC 3 H 5 O 3 ]

[HC 3 H 5 O 3 ] < [NaC 3 H 5 O 3 ]

A buffer solution is made from lactic acid (pKa = 3.86) and sodium lactate. At a pH of 7, which is true?

[HC 3 H 5 O 3 ] < [NaC 3 H 5 O 3 ]

[HC 3 H 5 O 3 ] > [NaC 3 H 5 O 3 ]

[HC 3 H 5 O 3 ] ~= [NaC 3 H 5 O 3 ]

A buffer solution is made from equal concetrations of lactic acid and sodium lactate. When NaOH is added to the buffer, which is true

[HC 3 H 5 O 3 ] < [NaC 3 H 5 O 3 ]

[HC 3 H 5 O 3 ] > [NaC 3 H 5 O 3 ]

[HC 3 H 5 O 3 ] ~= [NaC 3 H 5 O 3 ]

Both [HC 3 H 5 O 3 ] and [NaC 3 H 5 O 3 ] increase

Both [HC 3 H 5 O 3 ] and [NaC 3 H 5 O 3 ] decrease

A buffer solution is made from equal concetrations of lactic acid and sodium lactate. When HCl is added to the buffer, which is true

[HC 3 H 5 O 3 ] > [NaC 3 H 5 O 3 ]

[HC 3 H 5 O 3 ] ~= [NaC 3 H 5 O 3 ]

[HC 3 H 5 O 3 ] < [NaC 3 H 5 O 3 ]

Both [HC 3 H 5 O 3 ] and [NaC 3 H 5 O 3 ] increase

Both [HC 3 H 5 O 3 ] and [NaC 3 H 5 O 3 ] decrease

AP Chemistry Acids and Bases

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AP Chemistry Acids and Bases

Quiz

•

Chemistry

•

11th Grade - University

•

Practice Problem

•

Hard

•

NGSS

HS-PS1-5

Standards-aligned

Charles Martinez

FREE Resource

24 questions

Show all answers

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Will this be a buffer:
1 mol HCl and 1 mol NaOH

Yes, it is a weak acid/base and its conjugate

Yes, it will form a weak acid/base and its conjugate

No, it contains only a strong acid/base and its conjugate

No, it will form a neutral salt

Not really, it will be predominately a weak acid/base or a weak conjugate

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Will this be a buffer:
1 mol of HF and 1 mol NaF

Yes, it is a weak acid/base and its conjugate

Yes, it will form a weak acid/base and its conjugate

No, it contains only a strong acid/base and its conjugate

No, it will form a neutral salt

Not really, it will be predominately a weak acid/base or a weak conjugate

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Will this be a buffer:
1 mol of CH₃COOH and 0.5 mol NaOH

Yes, it is a weak acid/base and its conjugate

Yes, it will form a weak acid/base and its conjugate

No, it contains only a strong acid/base and its conjugate

No, it will form a neutral salt

Not really, it will be predominately a weak acid/base or a weak conjugate

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Will this be a buffer:
1 mol of CH₃COOH and 1 mol NaOH

Yes, it is a weak acid/base and its conjugate

Yes, it will form a weak acid/base and its conjugate

No, it contains only a strong acid/base and its conjugate

No, it will form a neutral salt

Not really, it will be predominately a weak acid/base or a weak conjugate

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Will this be a buffer:
1 mol of HClO₄ and 1 mol NaClO₄

Yes, it is a weak acid/base and its conjugate

Yes, it will form a weak acid/base and its conjugate

No, it contains only a strong acid/base and its conjugate

No, it will form a neutral salt

Not really, it will be predominately a weak acid/base or a weak conjugate

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Will this be a buffer:
1 mol of CH₃NH₂ and 1 mol CH₃NH₃⁺

Yes, it is a weak acid/base and its conjugate

Yes, it will form a weak acid/base and its conjugate

No, it contains only a strong acid/base and its conjugate

No, it will form a neutral salt

Not really, it will be predominately a weak acid/base or a weak conjugate

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Will this be a buffer:
1 mol of HCOOH

Yes, it is a weak acid/base and its conjugate

Yes, it will form a weak acid/base and its conjugate

No, it contains only a strong acid/base and its conjugate

No, it will form a neutral salt

Not really, it will be predominately a weak acid/base or a weak conjugate

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AP Chemistry Acids and Bases

24 questions

Will this be a buffer:
1 mol HCl and 1 mol NaOH

Will this be a buffer:
1 mol of HF and 1 mol NaF

Will this be a buffer:
1 mol of CH₃COOH and 0.5 mol NaOH

Will this be a buffer:
1 mol of CH₃COOH and 1 mol NaOH

Will this be a buffer:
1 mol of HClO₄ and 1 mol NaClO₄

Will this be a buffer:
1 mol of CH₃NH₂ and 1 mol CH₃NH₃⁺

Will this be a buffer:
1 mol of HCOOH

What will be the pH if this salt is added to water:
KI

What will be the pH if this salt is added to water:
NaCH₃COO

What will be the pH if this salt is added to water:
NaNO₃

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Popular Resources on Wayground

Discover more resources for Chemistry

AP Chemistry Acids and Bases

24 questions

Will this be a buffer:1 mol HCl and 1 mol NaOH

Will this be a buffer:1 mol of HF and 1 mol NaF

Will this be a buffer:1 mol of CH3COOH and 0.5 mol NaOH

Will this be a buffer:1 mol of CH3COOH and 1 mol NaOH

Will this be a buffer:1 mol of HClO4 and 1 mol NaClO4

Will this be a buffer:1 mol of CH3NH2 and 1 mol CH3NH3+

Will this be a buffer:1 mol of HCOOH

What will be the pH if this salt is added to water:KI

What will be the pH if this salt is added to water:NaCH3COO

What will be the pH if this salt is added to water:NaNO3

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Popular Resources on Wayground

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Will this be a buffer:
1 mol HCl and 1 mol NaOH

Will this be a buffer:
1 mol of HF and 1 mol NaF

Will this be a buffer:
1 mol of CH₃COOH and 0.5 mol NaOH

Will this be a buffer:
1 mol of CH₃COOH and 1 mol NaOH

Will this be a buffer:
1 mol of HClO₄ and 1 mol NaClO₄

Will this be a buffer:
1 mol of CH₃NH₂ and 1 mol CH₃NH₃⁺

Will this be a buffer:
1 mol of HCOOH

What will be the pH if this salt is added to water:
KI

What will be the pH if this salt is added to water:
NaCH₃COO

What will be the pH if this salt is added to water:
NaNO₃