ch8 Flashcards

(55 cards)

0
Q

substance in which the solute dissolves

A

solvent

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1
Q

substance whose particles are dissolved in a solution.

A

solute

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2
Q

three ways substances can dissolve in water

A

dissociation dispersion ionization

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3
Q

for a solute to dissolve in water the solute and the solvent particles must what

A

attract each other

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4
Q

what must happen to the attractions that hold the solute together in the solvent together

A

these attractions must be overcome

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5
Q

The process in which an ionic compound separate into ions as it dissolves

A

dissociation

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6
Q

Break into small pieces that spread throughout the water

A

dispersion

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7
Q

The process in which neutral molecules gain or lose electrons

A

ionization

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8
Q

what kind of change is dissolving by ionization

A

chemical

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9
Q

what are three physical properties of a solution that can differ from those of its solute and solvent

A

conductivity freezing point and boiling point

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10
Q

what happened to energy during the formation of a solution

A

it is either released or absorbed

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11
Q

what must happen to the attractions among solute particles and the attraction among solvent particles in order for a solution to form

A

attraction among particles must be broken

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12
Q

when an attraction is broken is energy released or absorbed

A

released

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13
Q

what are factors that affect the rate of dissolving

A

surface area stirring temperature

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14
Q

what happens when there is a greater surface area of a solid solute

A

there are more frequent collisions between the saw you in the solvent particles which results in a faster rate of dissolving

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15
Q

how can you increase the surface area of a solid

A

divided into smaller particles

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16
Q

what is stirring due to the particles in a solid

A

it moves the dissolved particles away from the surface and allows for more collisions between solute and solvent particles

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17
Q

what does increasing the temperature of the saw that causes particles to do

A

faster

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18
Q

what increases when you increase the temperature of the solvent

A

The number of collisions between particles and the energy of these collisions with solute particles

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19
Q

The maximum amount of solute the dissolved in a given amount of solvent at a constant temperature

A

solubility

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20
Q

depending on the amount of solute in the solution how are solutions described as

A

unsaturated supersaturated or saturated

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21
Q

A solution that contains as much solute as the solvent that could hold at a given temperature

A

saturated solution

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22
Q

A solution that has less than the maximum amount of solute that can be dissolved

A

unsaturated solution

23
Q

solution that contains more solute that I can normally hold at a given temperature

A

supersaturated

24
what are three factors that affect the solubility of a solute
The polarity of the solvent temperature and pressure
25
when is the formation of a solution most likely to happen
when the solute insolvent are either both polar or nonpolar
26
when the temperature of the solvent increases is what happens to the solubility of a solid
solubility increases
27
happens to the solubility of a gas which pressure is increased
The solubility is increased
28
The amount of solute dissolved in a specified amount of solution
concentration
29
what are three ways cogitation can be expressed as a percent by
volume percent by mass and molarity
30
Number of moles of a solute dissolved per liter of solution
molarity
31
A compound that produces hydronium ion is when dissolved in water
acid
32
what are general properties of acids
sour taste reactivity with metal and ability to produce color changes in indicators
33
what kind of reaction takes place between an acid and a metal
Single replacement
34
any substance that changes color in the presence of an acid or base
indicator
35
A compound that produces hydroxide ions when dissolved in water
base
36
properties of bases
veteran taste and slippery feel and ability to produce color changes in indicators and usually do not react with metals
37
what color does acid turn litmus paper
red
38
what color do bases turn litmus paper
blue
39
The reaction between an acid and a base
neutralization
40
this is formed when negative ions in an acid because I'm at the positive ions in a base
Salt
41
what does the neutralization reaction between an acid and a base make
Salt and water
42
are acids proton donors or proton acceptors
donors
43
are bases proton donors or proton acceptors
acceptors
44
what number is defined as neutral on the pH scale
7
45
A measure of its hydronium ion concentration
PH
46
H3O+ ion concentration in a solution is greater when
the pH value is lower
47
the H3O+ ion concentration in a solution is lower when
the pH value is higher
48
what happened with strong acids dissolve in water
they ionize almost completely
49
what happens to strong bases when in water
dissociate almost completely
50
when weak acids or bases are put in water what happens
they ionize or dissociate only slightly
51
The solutions tendency to form ions in water
strength
52
A solution that is resistant to large changes in pH and can be prepared by mixing a weak acid and it's salt or a weak base and it salt
buffer
53
A substance that ionizes or dissociate into ions when dissolved in water
electrolyte
54
why are strong acids or bases strong electrolytes
because they dissociate or ionize almost completely in water