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TESTS FOR IONS > Negative Ions > Flashcards

Negative Ions Flashcards

1
Q

SULFATES…
First add____.
Then add ____.

A

Hydrochloric acid.

Barium Chloride Solution.

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2
Q

HALIDES…
Add ___.
Then add ___.

A

Dilute nitrix acid.

Silver nitrate solution.

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3
Q

CARBONATES

How do you know if carbon dioxide is produced?

A

turns limewater cloudy

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4
Q

SULFATES

What is the purpose of adding dilute hydrochloric acid?

A

Removing carbonate ions.

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5
Q

SULFATES

Don’t use sulfuric acid to remove carbonate ions, because…

A

It contains sulfate ions and will make a test result always positive.

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6
Q

SULFATES

Adding barium chloride solution forms…

A

Barium sulfate, an insoluble salt.

Will be visible as a WHITE PRECIPITATE.

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7
Q

What are the halides?

A

Chlorine, Bromine, Iodine

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8
Q

HALIDES…

What is the purpose of adding dilute nitric acid?

A

Removing carbonate ions.

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9
Q

HALIDES…

What is the purpose of adding silver nitrate solution?

A

Produces a precipitate of silver halide.

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10
Q

CARBONATES…

Add dilute acid, what is produced?

A

Carbon dioxide

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TESTS FOR IONS (2 decks)

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