Chapter 12 and 13

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what is homogeneous mixture another name for

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45 Terms

1

what is homogeneous mixture another name for

a solution

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2

homogeneous mixture

a solution where the particles are in uniform and there is a solvent and a solute

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3

solvent

greater amount, does the dissolving

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4

what way does heat travel

high to low

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5

solute

lesser amount, what is being dissolved

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6

solubility

how dissolvable a substance is

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7

when can solutions mix properly

when both are either nonpolar or both are polar

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8

what is it called if two solutions can mix

miscible

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9

immiscible

when one mixture is polar and the other is nonpolar so they dont mix

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10

henry’s law

if a gas is being dissolved in a liquid, the more pressure you have the more gas you will dissolve

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11

if you want to dissolve a gas would a hot or cold liquid dissolve more

cold liquid

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12

what are the two types of heterogeneous mixtures

colloids and suspensions

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13

what is a heterogeneous mixture

it has two or more phases

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14

how big are the particles in a colloid

between 1 and 1000 nanometers which is small enough to stay in place

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15

what are the two phases that a colloid has

dispersed and continuous

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16

what is the dispersed phase of a colloid

the phase that is being dispersed

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17

what is the continuous phase of a colloid

the phase that is surrounding the dispersed particles

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18

suspension

over 1000 nanometers

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19

what do suspensions do if they are left unattended

separate

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20

if the tyndall effect passes through a colloid will the light scatter or pass through

scatter

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21

what is it called when there is constant motion (microscopic juggling) in a solution

Brownian motion

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22

what are examples of brownian motion

jello, milk, hairspray, paint, glue, mayo, whipped cream, ice cream

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23

what are electrolyes

ionic compounds dissolved in water which now make the water conduct a current

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24

how do you dissolve a gas

add pressure and cool it

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25

dissolving a gas is usually

exothermic

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26

what is the formula for osmotic pressure

pie=MRT

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27

what does pie stand for

osmotic pressure

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28

what does M stand for

molaRity

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29

what does m stand for

molaLity

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30

what does T stand for

temp

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31

how do you dissolve a solid

increase surface area (grind it up), heat it, or stir it

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32

how do you get a supersaturated liquid

you heat the solution to make more spaces and then add more solute and allow to cool

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33

what is the molarity equation

moles/L

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34

what is the molality equation

moles/kg

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35

what is heat of solution

the change in heat when dissolving a solute in a solvent

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36

negative change in heat (- triange H)

exothermic- heat is minusing from solution

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37

positive change in heat (+ triangle H)

endothermic- heat is adding to solution(absorbing)

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38

what are the four colligative properties

freezing point, boiling point, vapor pressure, osmotic pressu

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39

how do non-volatile solute particles affect the boiling point of a solution

it raises the boiling point

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40

how do non-volatile solute particles affect the freezing point of a solution

it lowers the freezing point

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41

osmosis

when a solvent passes through a semipermeable membrane from lower concentration to higher concentration

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42

do colligative properties change based on the number of particles or the type of particles

number of particles

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43

which is NOT an electrolyte: acid, base, colloid or salt

colloid

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44

what is the measure of the chance that particles escape from the surface of a solution called

vapor pressure

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45

what is a mixture of metals called

alloy

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