Titrations Flashcards

1
Q

A titration determines the concentration of an _

A

Unknown solution

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2
Q

Titrant (or reagent) is a solution with _

A

A known concentration

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3
Q

During a titration, the titrant is slowly added into a solution of unknown concentration until _

A

The endpoint of the reaction is reached

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4
Q

Titrant added to unknown solution is known as (verb)

A

Titrating

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5
Q

The endpoint of titrating is reached when _

A

Color change has occurred

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6
Q

If you know the concentration of one solution, you can calculate _

A

Concentration of other

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7
Q

Burette contains the solution of (titration)

A

Known (standardized) concentration

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8
Q

The concentration of _ is unknown (titration)

A

Solution in flask

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9
Q

An _ is added to the solution in the flask to let chemist know when to stop the titration

A

Indicator

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10
Q

Indicator causes _ to change when moles are equal

A

Color

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11
Q

The resulting solution is known as (titration)

A

Standardized solution

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12
Q

Known as standard solution because Molarity is _ after the titration

A

Determined mathematically

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13
Q

During titration, reagent is added slowly so that you can see _

A

First moment indicator changes color

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14
Q

Sometimes you need to _ when approaching end point

A

Add one drop of reagent at a time

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15
Q

An indicator is a substance that changes color to indicate a change in _

A

pH

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16
Q

For acid-base titrations, indicator is usually _

A

ppth

17
Q

ppth is short for _

A

Phenolphtalein

18
Q

Phenolphthalein changed from colorless to pink at a pH of about _

A

8.1