Chapter 26- Acids And Basses Flashcards

1
Q

Name three everyday acids

A

Lemon juice
Rain water
Vinegar

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2
Q

Acid turns blue litmus

Red litmus

A

Red

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3
Q

Base turns litmus ______

A

Blue

B.lue for B.ase

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4
Q

Acids have a ____ pH

A

Low

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5
Q

Bases have a ____ pH

A

High

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6
Q

Name three lab bases

A
  • sodium hydroxide (NaOH)
  • calcium carbonate (CaCO3)
  • Limewater (Ca(OH)2)
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7
Q

Name three everyday bases

A

Toothpaste
Bleach
Indigestion tablets

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8
Q

Alkali

A

A base that is soluble in water

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9
Q

Neutral

A

A group of substance with a pH of 7

Neither acidic or basic

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10
Q

To create your own indicator

A

Boil red cabbage leaves

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11
Q

Universal indicator levels

A

Red (1pH)

|orange
|yeallow
|green
|/

Purple/Blue (14pH)

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12
Q

Neutralisation

A

Acid+base-> salt + water

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13
Q

Give an example of neutralisation

A

Dilute Hydrochloric acid + Sodium Hydroxide = salt+carbon dioxide +water

HCL+ NaOH = NaCh + Co2 + H2O

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14
Q

Titration

A

Allows you to find out exactly how much acid is needed to neutralise a base

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15
Q

Pipette measures

A

Base

Eg NaOH

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16
Q

Burette measures

A

Acid

Eg. HCL

17
Q

Explain steps for titration

A

Pipettes 25cm^3 of NaOH
Add indicator
Burette drop HCL in until indicator changes

Do result again w/o indicator
Will be left with NaCl and H2O

18
Q

Equation for metal reacting with acid

A

Zinc+Hydrochloric acid-> Zinc Chloride +hydrogen

19
Q

When metals and acids react ___ and ___ are produced

A

Salt

Hydrogen

20
Q

Test for hydrogen

A

Lighting a splint and seeing if it will burn with a pop sound

21
Q

Name two lab acids

A

HCL acid

Sulfuric acid