Chapter 8 Flashcards

1
Q

What is a concentrated acid

A

More acid dissolved in a solution - more hydrogen ions in a set volume

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2
Q

Are hydrogen ions positive or negative

A

Positive

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3
Q

What’s a dilute acid

A

Less hydrogen ions in a as volume

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4
Q

What’s a string alkali

A

More hydroxide ions in a set amount

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5
Q

What charge are hydroxide ions

A

Negative

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6
Q

What’s a concentrated solution

A

More solute per unit volume of solvent

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7
Q

How do you work out the concentration

A

Amount dissolved (solute) (G) divided by volume of solution (dm^-3)

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8
Q

What’s concentration measured in

A

Gdm^-3

Grans per decimetre (litre) cubed

  • minus sign means per dm^3
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9
Q

What’s 1dm^-3 equivalent to

A

1000cm^3

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10
Q

What’s a base

A

A chemical of 8-14 PH which is insoluble

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11
Q

How do we test for hydrogen gas

A

Collect gas and light a splint and release gas and listen for a pop

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12
Q

How do test for carbon dioxide

A

Blow gas into limewater - will go cloudy of present

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13
Q

How do we test for oxygen

A

Briefly put out flame collect gas, put splint near flame it should relight

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