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Chemistry > 1(a) States of Matter > Flashcards

1(a) States of Matter Flashcards

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1
Q

Solids

A
  • Regular Arrangement
  • Vibrate around in fixed positions
  • Strong bonds/forces of attraction
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2
Q

Liquids

A
  • Random arrangement
  • Particles can slide over eachother
  • Weaker bonds/forces of attraction
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3
Q

Gases

A
  • Random arrangement
  • Particles have lots of K.E.
  • Negligible bonds/forces of attraction
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4
Q

States of Matter: Solid to Liquid

A

Melting

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5
Q

States of Matter: Liquid to Gas

A

Boiling

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6
Q

States of Matter: Gas to liquid

A

Condensing

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7
Q

States of Matter: Liquid to solid

A

Freezing

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8
Q

States of Matter: Solid to Gas

A

Sublimation

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9
Q

States of Matter: Gas to Solid

A

Decomposition

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10
Q

Solvent

A

Liquid in which a solute dissolves

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11
Q

Solute

A

Dissolves in a liquid to form a solution

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12
Q

Solution

A

Mixture when a solute has dissolved in a solvent

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13
Q

Saturated Solution

A

Solution in which no more solvent can be dissolved

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14
Q

Solubility

A

Grams/solute that will dissolve in 100g of water

Maximum mass of solute that dissolves in 100g of solvent at a particular temperature.

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15
Q

Solubility Curves

A
  • When temp. increases, solubility of solid increases
  • When pressure increases, solubility of gas increases
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16
Q

Practical: Investigating the solubility of a solid in water

A
  1. Weigh evaporating basin
  2. Heat boiling tube containing water to 40 degrees then add potassium nitrate to it and stir rapidly until no more of it will dissolve (there will be some undissolved solid).
  3. Let it cool then pour the solution into the evaporating basin (without the solid)
  4. Weigh evaporating basin and contents
  5. Heat evaporating basin + contents gently (to avoid spitting of solution) to evaporate all the water
  6. Reweigh evaporating basin and contents
  7. Heat again, to make sure all water has evaporated (heat to constant mass)
  8. Reweigh
17
Q

How to find the solubility of a substance in 100g of solvent

A

mass of solute/mass of solvent x 100

Chemistry (28 decks)

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