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Chem! > Solutions > Flashcards

Solutions Flashcards

1
Q

Solution

A

Homogenous mixture

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2
Q

Properties of a solution

A
  • Transparent
  • Cannot be filtered
  • Particles are evenly distributed
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3
Q

What are the two parts of a solution?

A

Solute and solvent

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4
Q

Solute

A

That which dissolves in a solvent

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5
Q

Solvent

A

That which dissolves the solute

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6
Q

Iodine dissolves in ethanol. Label the solute and solvent

A

Iodine is the solute, ethanol is the solvent

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7
Q

Dilute solution

A

Contains small amount of solute compared to solvent

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8
Q

Concentrated solution

A

Contains large amount of solute compared to solvent

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9
Q

As temperature increases, the solubility of salts

A

Also increases

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10
Q

As teneortaure increases, the solubility of gases

A

Decreases

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11
Q

To increase the solubility of a gas

A
  • Lower temperature
  • High pressure
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12
Q

As the temperature of the ocean increases, the concentration of dissolved oxygen

A

Decreases

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13
Q

Saturated solution

A

The solvent dissolved the maximum amount of solute at a specific temperature

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14
Q

Unsaturated solution

A

The solvent dissolves less than the maximum amount of solute at a specific temperature

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15
Q

Supersaturated solution

A

The solvent dissolves more than the maximum amount of solute at a specific temperature

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16
Q

How is solution concentration determined (3)?

A

1) Mass percent of solute in a solution
2) Parts per million
3) Molarity

17
Q

Mass percent =

A

Grams of solute/grans of total solution x 100

18
Q

PPM =

A

Grams of solute/total grams of solution x 1000000

19
Q

Solutions that produce the highest boiling points and lowest freezing points have

A

The most number of moles of dissolved ions

20
Q

Molarity =

A

Moles of solute/liters of solution

20
Q
A
21
Q

Breakdown the number of moles of dissolved ions in

2 M of KBr
3 M of CH3CH2OH
1 M of MgF2

A

2 M of KBr -> 2K+1 + 2Br-1 = 4 moles of dissolved ions

3 M CH3CH2OH = 3 moles of dissolved ions (molecular substance)

1M MgF2 -> 1Mg+2 + 2F-1 = 3 moles dissolved ions

22
Q

Molecular substances don’t breaks up. Instead, they

A

Form distinct molecules

23
Q

Number of moles in original solution =

A

Number of moles in final solution

Chem! (9 decks)

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