2.5 Solutions and pH Flashcards

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1
Q

What is cohesion?

A

H bonding between H2O molecules.

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2
Q

What is adhesion?

A

H bonding between H2O and other substances.

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3
Q

What is a solvent?

A

Dissolve solutes creating solvents.

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4
Q

What is specific heat?

A

Amount of energy it takes to heat up Ig of a substance by 1 degree Celsius.

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5
Q

What is heat of vaporization?

A

Energy it takes for 1g of water to evaporate.

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6
Q

What is concentration?

A

The amount of solute over volume

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7
Q

What does pH stand for?

A

Potential of Hydrogen ions.

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8
Q

What does pOH stand for?

A

Potential of Hydroxide Ion.

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9
Q

What makes a solution an acid?

A

The pH is more then 7.
[H3O] > [-OH]

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10
Q

What makes a solution an base?

A

The pH is less then 7.
[H3O] < [-OH].

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11
Q

What are the five properties of water?

A
  1. Cohesion and Adhesion
  2. Water is the Solvent of Life
  3. Ice is less dense than liquid water
  4. High Specfic Heat
  5. Heat of Vaporization
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12
Q

What is the pOH, [H+], and [OH-], when the pH is 8? Is it a base, acid or neutral?

A

pOH= 6
[H+]=10e-8
[OH-]=10e-6

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13
Q

What is the pH, pOH, and [H+], when the [OH-] is 10e-11? Is it acid, base, or neutral?

A

pH= 3
pOH=11
[H+]= 10e-3

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14
Q

What is a buffer?

A

A reservoir of [H+]

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15
Q

What will the buffer do, when the solution gets more acidic?

A

Buffers absorb the [H+] to make It more neutral.

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16
Q

What two ions does water occasionally split into?

A

Hydroxide and Hydronium

16
Q

What will the buffers do when the solution gets more basic?

A

Buffers release more [H+] to make it more neutral.

17
Q

Rank the states of matter from most dense to least dense-

A

Liquid>Solid>Gas