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Flashcards in chapter8 Deck (27):
1

solution

homogeneous mixture made of solute and solvent

2

solute

smaller amount

3

solvent

larger amount

4

In an OH- bond, which has partial negative charge, and which has partial positive charge?

partial negative- oxygen
partial positive-hydrogen

5

define hydration
what type of solution does hydration occur in?

process that diminishes attractions between positive and negative ions and keeps them in solution
ionic

6

when solute and solvent forms a solution, energy is___

released

7

electrolytes

seperate into ions and conduct electricity when dissolved in water

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nonelectrolyte

dissolve as molecules, don't conduct electricity

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dissociation

process of solutes dissolving to produce ions

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strong electrolyte

100% dissociation

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weak electrolytes
what happens if more ions form?

dissolve in water mostly as molecules and a few ions
poor electrical conduction
as more ions form,they recombine

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nonelectrolytes

dissolve in water as molecules

13

equivalent(Eq)

amount of each individual ion that is equal to 1 mole of positive/negative charge

14

solubility

amount of solute that can dissolve in a given amount of solvent

15

what is solubility expressed in?

grams of solute in 100 grams of solvent @ given temperature

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unsaturated solution

solute is readily dissolved in solvent (solution doesn't have max solute)

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saturated solution

solution that has max solute it can dissolve

18

what will happen to the solutes in a saturated solution?

solute recrystallizes and dissolves

19

as temp goes up, what happens to the solubility of liquids?

increases

20

when a saturated solution cools, what is the solution called?

super saturated solution

21

as temp goes up, what happens to the solubility of gases?

solubility of gas decreases

22

Henry's law

solubility of gas in liquid is directly related to pressure of gas above liquid

23

soluble salts

ionic compounds that dissolve in wate

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rules of soluble salts:

contains Li+,Na+,K+,NH4-,NO3-.C2H3O2-
Cl-,Br-,I- UNLESS combined w/ Ag+, Pb+,Hg2(2+)
SO4(2-) UNLESS contains Ba2+,Pb2+,Ca2+,Sr2+,CO3(2-),S2-, PO4(3-), OH-

25

insoluble salkts

ionic compounds taht don't dissolve in water

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when do precipitates form?

when 2 ionic compounds are mixed

27

concentration- amount of solute dissolved in amount of solution

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