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Chemistry > test 2 > Flashcards

test 2 Flashcards

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1
Q

explain titration

A

acid in beaker, base in buret. add base to acid until color change. tititration used to determination concentration of unknown solution

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2
Q

endpoint

A

color of indicator has changed, experiment is complete

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3
Q

indicator

A

substance that undergoes color chnage when reaxn approaches completion

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4
Q

standard/primary solution

A

sol in which conc known

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5
Q

equivalence point

A

moles acid = moles base

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6
Q

dilution

A

lower conc mae from sol of higher conc

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7
Q

stoichiometry

A

process used to determine amounts using a balanced chemical equation

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8
Q

solute

A

what is dissolving

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9
Q

solvent

A

what the solute is being dissolved in

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10
Q

miscible

A

mixes, alcohol and water

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11
Q

immiscible

A

doesn’t mix, oil and water

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12
Q

supersaturated solution

A

under controlled setting, more solute can be forced to dissolve in a solvent

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13
Q

unsaturated solution

A

more solute can be dissolved in solvent

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14
Q

molarity

A

Moles/L

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15
Q

solution

A

homogenous mixture

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16
Q

concentration

A

more solute/given volume (stock solution)

17
Q

dilute

A

less solute/given volume

18
Q

avo #

A

6.02 x10^23

19
Q

stock solution

A

concetrated solution

20
Q

limiting reacant

A

LR - reactant that limits how much product can be made

21
Q

excess reactant

A

ER - reactant that is left over after a reaxn goes to completion

22
Q

mole

A

6.02x10^23 of stuff FUMPA (formula units, moles, particles, atoms)

23
Q

empirical formula

A

samllest whole number ratio in a compound

24
Q

molecular formula

A

true or actual formula of compound

25
Q

saturated solution

A

no more solute can be dissolved in solvent

Chemistry (9 decks)

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