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Analytical Chemistry > Acids and Base (with Titration) > Flashcards

Acids and Base (with Titration) Flashcards

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1
Q

Identify the solution.

a. pH is below 7
b. High H+ concentrations
c. Low OH- concentrations

A

Acidic solution

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2
Q

Identify the solution.

a. pH is 7
b. H+ and OH- concentrations match pure water

A

Neutral

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3
Q

Identify the solution.

a. pH is above 7
b. Low H+ concentrations
c. High OH- concentrations

A

Basic or alkaline

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4
Q

Identify if acid or base.

A compound that can lose H+.

A

Acid

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5
Q

Identify if acid or base.

Proton donors

A

Acid

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6
Q

Identify if acid or base.

Any compound that can bond (gain) to H+.

A

Base

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7
Q

Identify if acid or base.

Proton acceptors

A

Base

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8
Q

Identify if acid or base.

Contain at least one hydroxyl group.

A

Acid

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9
Q

What do you call the two substances that bear formulas that differ by one hydrogen ion?

A

Conjugate pair

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10
Q

How many conjugate pairs can be found in an acid-base reaction?

A

2

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11
Q

What do you call the substances that can either gain or lose hydrogen ions?

A

Amphiprotic

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12
Q

True or False.

Water is an amphiprotic molecule.

A

True.

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13
Q

What do you call the solution that resists a change in pH when acids and bases are added to them?

A

Buffer solution

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14
Q

What compounds form hydroxide ions when they dissolve in water?

A

Bases

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15
Q

What type of acid is only able to transfer one hydrogen ion to water?

A

Monoprotic acid

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16
Q

What volumetric analysis is often observed using chemical indicators in which substances react to completion?

A

Titration

17
Q

What can show the amount of analyte present in a titration process?

A

Quantity of titrant that is required

18
Q

In titration, what substance has no concentration or identity?

A

Analyte

19
Q

In a titration, what substance has accurately known concentration or identity?

A

Titrant or Standard

20
Q

In a titration, what substance produces distinct colors at certain pH?

A

Indicator

21
Q

What type of titration determines the concentration of an acid or base?

A

Acid-Base Titration

22
Q

What type of titration is based on complex formation?

A

Complexometric Titration

23
Q

What type of titration is based on reactions that yield ionic compounds of limited solubility?

A

Precipitation titration

24
Q

What type of titration determines the concentration of an unknown solution (analyte) that contains an oxidizing or reducing agent?

A

Redox Titration

25
Q

What is the point in the titration shows the completion of the reaction?

A

Equivalence point

26
Q

What do you call the point in the titration where visible changes in the indicator occur?

A

Endpoint

27
Q

How do equivalence points happen?

A

It occurs when the quantity of added titrant is the exact amount necessary for the stoichiometric reaction.

28
Q

True or False.

The endpoint is the ideal theoretical result we seek in titration.

A

False.

The equivalence point is the ideal result.

29
Q

What is the most widely used acidic solution for titration?

A

Hydrochloric acids (HCL)

30
Q

What is the most common basic solution used for titration?

A

Sodium hydroxide (NaOH)

31
Q

Identify the theory.

“An acid is a proton donor and a base is a proton acceptor.”

A

Bronsted-Lowry Theory

32
Q

What do you call the ion that bears both a positive and a negative ion?

A

Zwitterion

33
Q

“The position of an equilibrium always shifts in such direction to relieve a stress that is applied to the system.”

A

Le Chatelier principle

34
Q

What is the equation that is used to calculate the pH of the buffer solution?

A

Henderson-Hasselbach equation

Analytical Chemistry (4 decks)

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